In a production line of a pharmaceutical company, 10g pills are made, one of the plant managers (head 1) states that the average weight of the pills is 10g with a deviation of 0.3g. During a visit to the plant, one of the company's managers selects 1 pill at random and weighs it, measuring 9.25g. The manager reports this novelty since he believes that there is a serious problem with the weight of the pills because values below 9.25g and above 10.75g are very rare.
a) With this information, what is the probability that the statement of the plant manager (head 1) is rejected if it is true?
b) Another of the plant managers (head 2) assures that due to adjustments in the production line the average weight of the pills has decreased. The following hypothesis test is performed:
_o: = . _1: < 10
And the following set is defined as its critical region:
= {(_1 _2…_n) n|(_1+_2+⋯+_n) / < }
Agreement has been reached that the test has a significance level of 0.05 and that the Power of the Test is 95% when the true mean is 9.75g. Find the values of and that satisfy these conditions.

Answers

Answer 1

The plant manager (head 1) claims that the average weight is 10g with a deviation of 0.3g. A hypothesis test is performed with a significance level of 0.05 and a power of 95% when the true mean is 9.75g.

We need to find the values of α (significance level) and β (Type II error) that satisfy these conditions.

a) To determine the probability of rejecting the statement made by the plant manager (head 1) if it is true, we need to perform a hypothesis test. The null hypothesis (H0) is that the average weight of the pills is 10g, and the alternative hypothesis (H1) is that the average weight is different from 10g. We compare the observed weight of 9.25g with the expected mean of 10g and the given standard deviation of 0.3g. By calculating the z-score, we can determine the probability of observing a value as extreme as 9.25g or more extreme, assuming the null hypothesis is true.

b) For the hypothesis test performed by the plant manager (head 2), we need to find the values of α (significance level) and β (Type II error) that satisfy the given conditions. The significance level α represents the probability of rejecting the null hypothesis when it is true, and the power of the test (1 - β) is the probability of correctly rejecting the null hypothesis when it is false (specifically, when the true mean is 9.75g). To find the values of α and β, we can use statistical software or tables that provide critical values based on the given significance level and power. These critical values will define the rejection region and the acceptance region for the test.

In summary, we need to perform a hypothesis test to determine the probability of rejecting the statement made by the plant manager (head 1) if it is true. Additionally, for the hypothesis test performed by the plant manager (head 2), we need to find the values of α (significance level) and β (Type II error) that satisfy the given conditions. These values can be obtained by consulting statistical software or tables that provide critical values based on the specified significance level and power.

To learn more about hypothesis click here: brainly.com/question/29576929

#SPJ11


Related Questions




2. Determine the points in C for which the following functions are holomorphic: (a) f(z) = z² (b) g(z) = x² - y² + 2xy (where z = x + iy)

Answers

There are no points in C for which the function g(z) is holomorphic.

The functions given are :

f(z) = z² and g(z) = x² - y² + 2xy (where z = x + iy)

We need to determine the points in C for which the functions are holomorphic.

(a) To check whether f(z) = z² is holomorphic or not, we will verify the Cauchy-Riemann equations (CRE) which are:

u x = v y and v x = - u y

Let us assume that f(z) = u(x, y) + iv(x, y)

Substituting in f(z) = z², we have f(z) = (x + iy)²= x² + 2ixy - y²

Now comparing with u(x, y) + iv(x, y), we get :

u(x, y) = x² - y² and v(x, y) = 2xy

Now applying the CRE, we get :

u x = 2xv

y = 2xu

y = - 2yv

x = 2y

We can see that both the CRE are satisfied.

Hence, f(z) = z² is holomorphic for all values of z in C.

(b) Similarly, for g(z) = x² - y² + 2xy (where z = x + iy), we have g(z) = u(x, y) + iv(x, y)

Substituting in g(z) = x² - y² + 2xy, we have g(z) = x² - y² + 2ixy

Now comparing with u(x, y) + iv(x, y), we get :

u(x, y) = x² - y² and v(x, y) = 2xy

Now applying the CRE, we get :

u x = 2xv

y = 2xu

y = - 2yv

x = 2x

Since the CRE are not satisfied, g(z) = x² - y² + 2xy (where z = x + iy) is not holomorphic at any point in C.

Therefore, we can say that there are no points in C for which the function g(z) is holomorphic.

To learn more about functions visit : https://brainly.com/question/11624077

#SPJ11

As an estimation we are told £3 is €4.
Convert £40.50 to euros.

Answers

Answer:

As per the conversion in the question, £40.50 = €54

Step-by-step explanation:

Here, we want to make a conversion;

from the question;

£3 = €4

£40.50 = €x

Thus;

3 * x = 4 * 40.5

x = (4 * 40.5)/3

x = €54

HELP ME!!!!!! Correct answers only!!!!!

Answers

Answer: 22.94 cubic meters

I'm pretty sure it is this.

I think it's 25.23 cubic meters if not then I don't know

Answer: 891ft^3

Step-by-step explanation:

сalculate the cross product. (use symbolic notation and fractions where needed.) (i+j ) × k = ___________

Answers

The cross product of

[tex](i+j) \times k[/tex]= 0.

To calculate the cross product of (i+j) and k,

Step 1: Assign unit vectors to the given vectors:

(i+j) = i + j + 0k

k = 0i + 0j + k

Step 2: Apply the cross product formula:

(i+j) × k = (i × 0i) + (i × 0j) + (i × k) + (j × 0i) + (j × 0j) + (j × k) + (0k × 0i) + (0k × 0j) + (0k × k)

Step 3: Simplify the cross product using the properties of the cross product:

(i × 0i) = (j × 0j) = (0k × 0i) = (0k × 0j) = 0

(i × k) = - (k × i)

(j × k) = - (k × j)

(k × k) = 0

Step 4: Substitute the simplified cross products into the formula:

(i+j) × k = 0 + 0 + (i × k) + 0 + 0 + (j × k) + 0 + 0 + 0

= 0 + 0 + (i × k) + 0 + 0 + (j × k) + 0 + 0 + 0

= (i × k) + (j × k)

Step 5: Calculate the cross products:

(i × k) = (0 - 0)k - (0 - 0)j = 0k - 0j = 0k

(j × k) = (0 - 0)i - (0 - 0)k = 0i - 0k = 0i

Step 6: Substitute the calculated cross products into the formula:

(i+j) × k = 0k + 0i

= 0k + 0

= 0

Therefore k=0.

Learn more about cross product here:

https://brainly.com/question/14708608

#SPJ4

Exercise 1: If tossing 4 coins identical and distinct. Find the number of macrostates and
microstates (explain the distribution in a table).
Exercise 2: Two particles distinct are to be distributed in three cells. Find the number of
macrostates and microstates ( explain the distrubition in a table)

Answers

Exercise 1: When tossing 4 identical and distinct coins, the number of macrostates and microstates are given below:MoleculesMacrostatesMicrostates4 coins16 states2^4=16Microstates: The number of ways in which the particles can be distributed among different energy levels is referred to as microstates. Macrostates: The number of ways in which the total energy of the system can be divided into different energy levels is referred to as macrostates. The distribution is represented in the following table: Distribution Microstates (W) Macrostates (Ω)TTTT1111HHHHT4C4,216HHHH3C4,715

Exercise 2:When distributing two distinct particles among three cells, the number of macrostates and microstates are as follows: Molecules Macrostates Microstates 2 particles10 states3^2=9Microstates: The number of ways in which the particles can be distributed among different energy levels is referred to as microstates. Macrostates: The number of ways in which the total energy of the system can be divided into different energy levels is referred to as macrostates. The distribution is represented in the following table: Distribution Microstates (W) Macrostates (Ω)2 in 11C21,23 in 11C31,33 in 11C32,310 in total 9.

Know more about microstates:

https://brainly.com/question/32556718

#SPJ11

Martin is dilating a blue triangle to create a yellow triangle. If he used a scale factor of

Which statement is true?

Answer

A

B

The perimeter of the yellow triangle will be 12/25 times the perimeter of the blue triangle.

The perimeter of the yellow triangle will be times the perimeter of the blue triangle.

The area of the yellow triangle will be times the area of the blue triangle.

С

D

The area of the yellow triangle will be

4

25

times the area of the blue triangle.

Previous

Answers

Answer:

See Explanation

Step-by-step explanation:

The question has missing details, as the scale factor is not given. However, I will give a general explanation on how to calculate the area and perimeter of a dilated shape (triangle).

The following assumptions, apply:

(1) Scale factor of 1/2 from the blue to the yellow triangle.

(2) The dimension of the blue triangle are:

[tex]Base = x[/tex]

[tex]Sides= y\ and\ z[/tex]

[tex]Height= h[/tex]

First, calculate the dimensions of the yellow triangle.

The dimension will be the product of the scale factor and the dimensions of the blue triangle.

So, we have:

[tex]Base = \frac{1}{2} * x = \frac{1}{2}x[/tex]

[tex]Sides = \frac{1}{2}y\ and\ \frac{1}{2}z[/tex]

[tex]Height = \frac{1}{2}h[/tex]

The perimeter of the blue triangle is:

[tex]P_1 =Base + Sides[/tex]

[tex]P_1 = x + y + z[/tex]

The perimeter of the yellow triangle is:

[tex]P_2 =Base + Sides[/tex]

[tex]P_2 = \frac{1}{2}x + \frac{1}{2}y + \frac{1}{2}z[/tex]

Factorize

[tex]P_2 = \frac{1}{2}[x + y + z][/tex]

Recall that: [tex]P_1 = x + y + z[/tex]

So:

[tex]P_2 = \frac{1}{2}*P_1[/tex]

This implies that the perimeter of the yellow triangle is a product of the scale factor and the perimeter of the blue triangle.

The area of the blue triangle is:

[tex]A_1 = \frac{1}{2}* Base * Height[/tex]

[tex]A_1 = \frac{1}{2} * x* h[/tex]

[tex]A_1 = \frac{1}{2} xh[/tex]

The area of the yellow triangle is:

[tex]A_2 = \frac{1}{2} * Base * Height[/tex]

[tex]A_2 = \frac{1}{2}* (\frac{1}{2}x) * (\frac{1}{2}h)[/tex]

Rewrite as:

[tex]A_2 = \frac{1}{2}* \frac{1}{2} [\frac{1}{2}x h][/tex]

[tex]A_2 = (\frac{1}{2})^2 *[\frac{1}{2}x h][/tex]

Recall that:[tex]A_1 = \frac{1}{2} xh[/tex]

So:

[tex]A_2 = (\frac{1}{2})^2 *A_1[/tex]

This implies that the area of the yellow triangle is a product of the square of the scale factor and the area of the blue triangle.

The following differential equation describes the movement of a body with a mass of 1 kg in a mass-spring system, where y(t) is the vertical position of the body in meters) at time t. y" + 4y + 5y = -21 To determine the position of the body at time t complete the following steps. (a) Write down and solve the characteristic (auxiliary) equation. (b) Determine the complementary solution, yc, to the corresponding homogeneous equation, y" + 4y' + 5y = 0. (c) Find a particular solution, Yp, to the nonhomogeneous differential equation, Y" + 4y' + 5y = e-21. Hence state the general solution to the nonhomogeneous equation as y = Ye + yp. (d) Solve the initial value problem if the initial position of the body is 1 m and its initial velocity is zero.

Answers

After considering the given data we conclude that
a) r = -2 + i and r = -2 - i value generated after solving the auxiliary equation
b)[tex]y_c = c_1e^{(-2t)} cos(t) + c_2e^{(-2t)} sin(t)[/tex] complementary solution
c) general solution to the nonhomogeneous equation is [tex]y = y_c + Y_p = c_1e^{(-2t)} cos(t) + c_2e^{(-2t)} sin(t) + (1/26)e^{(-21)} .[/tex]
d) initial value problem is [tex]y(t) = e^{(-2t)} (cos(t) + 2sin(t))/2 + (1/26)e^{(-21)} .[/tex]

To determine the position of the body at time t, we can apply the given differential equation to solve for y(t). To do this, we can follow the steps below:
(a) the characteristic (auxiliary) equation is
The characteristic equation is obtained by setting the coefficients of the differential equation to zero, which gives us the equation  [tex]r^2 + 4r + 5 = 0.[/tex]Solving this quadratic equation, we get r = -2 + i and r = -2 - i.
(b) evaluate the complementary solution, yc, to the corresponding homogeneous equation, [tex]y" + 4y' + 5y = 0.[/tex]
The complementary solution is given by[tex]y_c = c_1e^{(-2t)} cos(t) + c_2e^{(-2t)} sin(t),[/tex]where [tex]c_1[/tex] and [tex]c_2[/tex] are constants determined by the initial conditions.
(c) Calculate a particular solution, Yp, to the nonhomogeneous differential equation, [tex]Y" + 4y' + 5y = e^{(-21)}[/tex]. Hence state the general solution to the nonhomogeneous equation as [tex]y = y_c + y_p.[/tex]
To describe a particular solution, we can use the method of undetermined coefficients and guess a solution of the form [tex]Yp = Ae^{(-21)}[/tex], where A is a constant to be determined.
Staging this into the differential equation, we get A = 1/26. Therefore, the particular solution is [tex]Y_p = (1/26)e^{(-21)}[/tex]. The general solution to the nonhomogeneous equation is [tex]y = y_c + Y_p = c_1e^{(-2t)} cos(t) + c_2e^{(-2t)} sin(t) + (1/26)e^{(-21)}[/tex]
(d) Solve the initial value problem if the initial position of the body is 1 m and its initial velocity is zero.
Applying the initial conditions, we can solve for the constants [tex]c_1[/tex] and [tex]c_2[/tex] in the complementary solution. Since the initial velocity is zero, we have [tex]y'(0) = -2c_1 + c_2 = 0[/tex], which gives us [tex]c_2 = 2c_1.[/tex]
Applying the initial position, we have [tex]y(0) = c_1 = 1[/tex], which gives us [tex]c_2 = 2.[/tex]Therefore, the solution to the initial value problem is [tex]y(t) = e^{(-2t)} (cos(t) + 2sin(t))/2 + (1/26)e^{(-21)}[/tex]
To learn more about differential equation
https://brainly.com/question/28099315
#SPJ4

can somebody please double-check these for me.

just in case if the pictures blurry, I will provide the answers that I put below

my answers:

1. I got 27
2. I got 18.154
3. I got 44
4. I got 41.5

please correct me on any mistakes that I may have made ​

Answers

1. is a central angle, therefore, the arc will have the same measurement as the angle. Set the equation:

Arc = Central Angle

2x - 7 = 47

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, add 7 to both sides of the equation:

2x - 7 (+7) = 47 (+7)

2x = 47 + 7

2x = 54

Next, divide 2 from both sides of the equation:

(2x)/2 = (54)/2

x = 54/2 = 27

27 is your answer.

2. is a inscribed angle, meaning that the angle measurement will be half of the arc. Set the equation:

212 = 2(13x - 24)

Isolate the variable, x. Note the equal sign, what you do to one side, you do to the other. Do the opposite of PEMDAS.

First, divide 2 from both sides of the equation:

(212)/2 = (2(13x - 24))/2

106 = 13x - 24

Next, add 24 to both sides of the equation:

106 (+24) = 13x - 24 (+24)

106 + 24 = 13x

130 = 13x

Finally, divide 13 from both sides of the equation:

(130)/13 = (13x)/13

x = 130/13

x = 10

10 is your answer.

3. is a central angle. The arc and the angle will, therefore, have the same measurement:

137 = 3x + 5

First, subtract 5 from both sides of the equation:

137 (-5) = 3x + 5 (-5)

137 - 5 = 3x

132 = 3x

Next, divide 3 from both sides of the equation to isolate the variable, x:

(132)/3 = (3x)/3

x = 132/3 = 44

44 is your answer.

4. is a inscribed angle. The arc will be twice the measurement of the angle.

86 = 2(2x + 3)

First, isolate the variable x by dividing 2 from both sides of the equation.

(86)/2 = (2(2x + 3)/2

43 = 2x + 3

Next, subtract 3 from both sides of the equation:

43 (-3)  = 2x + 3 (-3)

40 = 2x

Finally, divide 2 from both sides of the equation:

(40)/2 = (2x)/2

x = 40/2 = 20

20 is your answer.

~

1.13 UNIT TEST GRAPH OF SINUSOIDAL FUNCTION PART 1

Answers

The true statements from the sinusoidal graph are:

The maximum height of the Ferris wheel is 64 ftThe radius of the Ferris wheel is 30 ft

From the table, we have the following parameters:

Maximum height = 64 ftMinimum height = 4 ft

So, the radius (r) of the wheel is:

[tex]r = \frac{64 - 4}{2}[/tex]

This gives

[tex]r = \frac{60}{2}[/tex]

[tex]r = 30[/tex]

Also, from the table, the lowest point of the wheel is 4 ft;

The Ferris wheel is at this lowest point at 7.5 seconds and 17.5 seconds

Hence, the true statement is (c) and (d)

Read more about sinusoidal functions at:

https://brainly.com/question/2410297

Find any vertical or slant asymptotes. Consider the following.

f(x) = x^3/ (x² - 49)

Answers

The function  [tex]f(x) = x^3 / (x^2 - 49)[/tex]has a vertical asymptote at x = 7 and x = -7. There are no slant asymptotes. To find the vertical asymptotes of the function f(x), we need to identify the values of x for which the denominator becomes zero, as division by zero is undefined.

In this case, the denominator is (x² - 49). To determine when it equals zero, we set it equal to zero and solve for x:

x² - 49 = 0

This equation can be factored as the difference of squares:

(x - 7)(x + 7) = 0

Setting each factor equal to zero, we find that x = 7 and x = -7. Therefore, the function has vertical asymptotes at x = 7 and x = -7.

On the other hand, to determine if there are any slant asymptotes, we need to check if the degree of the numerator (x³) is greater than the degree of the denominator [tex](x^2 - 49)[/tex]. In this case, the degree of the numerator is 3, while the degree of the denominator is 2. Since the degree of the numerator is greater, there are no slant asymptotes for this function.

In summary, the function [tex]f(x) = x^3 / (x^2 - 49)[/tex] has vertical asymptotes at x = 7 and x = -7. There are no slant asymptotes.

Learn more about denominator here: https://brainly.com/question/15007690

#SPJ11

Who can help , desperately need

Answers

Answer:

1/4 is x and 1 is b

Step-by-step explanation:

A rectangular garden has a width of 10 feet and a length of 14 feet. A cement
walkway is added around the outside of the garden. The area of the garden and the
walkway together are 252 square feet. What is the width of the walkway?

Answers

Total area=252 sq ft
Area of garden=10*14= 140 sq ft
Area of walkway=252-140= 112 sq ft
Walkway is around the garden, therefore its length is 24 ft (=10+14)
Walkway width=112/24= 4.7 ft

help i hate fractions pls

Answers

Answer:

the answer is B

Step-by-step explanation:

because you just put 100 underneath

Answer:

B, 71/100

Step-by-step explanation:

To do this, just put each fraction into a calculator, and whichever fraction results in the decimal you're looking for will be your answer.

Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s).
Consider the quadratic expression below.

Answers

Answer:

x = -3 and x = 2

Step-by-step explanation:

The expression for the quadratic equation is as follows:

(x+3)(x-2)

For (x+3)(x-2) to equal 0, either (x+3) or (x-2) must be equal to 0. So,

(x+3) = 0 and (x-2) = 0

It implies,

x = -3 and x = 2

So, the values of x are -3 and 2.

-23 = x - 23
A. Infinite number of solutions
B. No solution
C. 0
D. 5

Answers

Answer:

x=0

Step-by-step explanation:

have a nice day or evening

in how many ways can you divide 7 candies and 14 stickers among 4 children such that each child gets at least one candy and also gets more stickers than candies?

Answers

The total number of ways is: {Total number of ways} =[1120]

Let's say we have 7 candies and 14 stickers that need to be distributed among 4 children in such a way that each child gets at least 1 candy and more stickers than candies. So, let's divide the candies first. Then we can use the formula of stars and bars to distribute the remaining stickers.

Let's assume that the candies have already been divided into 4 groups such that each group contains at least 1 candy.

Then, the total number of ways of dividing 7 candies among 4 children is given by 3 stars and 4 bars (one less than the number of children). For example, the following diagram shows one possible distribution of the candies:
Each star represents one candy, and the bars represent the separations between the groups.

For example, the above diagram represents the distribution of candies as follows:

Child 1: 1 candy

Child 2: 2 candies

Child 3: 1 candy

Child 4: 3 candies

Now, we need to distribute the 14 stickers among the 4 children in such a way that each child gets more stickers than candies. We can do this by using the formula of stars and bars again. This time, we need to distribute 14 stickers among 4 children such that each child gets more than 1 candy. Let's represent the candies by stars and the stickers by bars, then we need to distribute 14 bars among 3 stars and 4 bars.

Here, the first three bars represent the stickers for the first child, the next two bars represent the stickers for the second child, the next bar represents the stickers for the third child, and the remaining eight bars represent the stickers for the fourth child.

So, the total number of ways of distributing 7 candies and 14 stickers among 4 children such that each child gets at least 1 candy and more stickers than candies is given by the product of the number of ways of distributing the candies and the number of ways of distributing the stickers.

Therefore, the total number of ways is: {Total number of ways} =[1120]

learn more about number of ways here:

https://brainly.com/question/30649502

#SPJ11

what is the x 19 + 13x = 32

Answers

Answer:

1

Step-by-step explanation:

100 pts plz help!!!!!!1

Answers

This is a supplementary equation, so that means both of the equations added together would be 180 degrees. Therefore, you simply add them together to make them equal 180: 17x+14+4x-2=180.

therefore x=8.

you can check it by plugging 8 into both equations. 17(8)+14=150 and 4(8)-2=30

150+30 is 180

your answer is x=8

hope this helps!! :)

[tex]\boxed{\large{\bold{\blue{ANSWER~:) }}}}[/tex]

Here,

The two lines l and m are parallel,

cut by a transversat line t

So The two angles are supplementary each other.

we know that,

The sum of two supplementary angles are 180°

According to the question,

(17x+14)°+(4x-2)°=180°

17x+14°+4x-2°=180°

17x+4x+14°-2°=180°

21x+12°=180°

21x=180°-12°

21x=168°

x=168°/21

x=8°

Therefore,

The value of x is 8°

Solve the differential equation = -xy, given that when x=0, y=50. You may assume y>0. (4 marks) dx (b) For what values of x is y decreasing?

Answers

The solution to the differential equation is [tex]y = e^{-\frac{x^2}{2} + \ln(50)}[/tex]

The value of y is decreasing for x > 0.

Solving the differential equation

From the question, we have the following parameters that can be used in our computation:

dy/dx = -xy

Rewrite as

dy/y = -x dx

Differentiate both sides

So, we have

ln|y| = -x²/2 + c

Take the exponent of both sides

[tex]|y| = e^{-\frac{x^2}{2} + c}[/tex]

Assume y > 0

So, we have

[tex]y = e^{-\frac{x^2}{2} + c}[/tex]

When x = 0, y = 50

So, we have

[tex]50 = e^{-\frac{0^2}{2} + c}[/tex]

Evaluate

c = ln(50)

So, we have

[tex]y = e^{-\frac{x^2}{2} + \ln(50)}[/tex]

For what values of x is y decreasing?

Recall that dy/dx = -xy.

This means that if dy/dx < 0, then y is decreasing.

This means that, y is decreasing for x > 0.

Read more about differential equation at

https://brainly.com/question/1164377

#SPJ4

28) (-5ưyA +9u) + (-5ư v4 - 8u + 8u²v2)+(-8u*v + 8uº4)=

Answers

Answer: good luck

Step-by-step explanation:

Can someone plz help this is my third time posting this question and I’m trying to get an 92

Answers

21 is the right answer.

180-138=42°

and since it is given in the question that the triangle is isoceles ,so half of 42 is 21°

Answer:

the last three answers is what i think

Step-by-step explanation:

in cell b8, find the value from the appropriate probability table to construct a 90onfidence interval. Shipment Time to Deliver (Days)
1 7.0
2 12.0
3 4.0
4 2.0
5 6.0
6 4.0
7 2.0
8 4.0
9 4.0
10 5.0
11 11.0
12 9.0
13 7.0
14 2.0
15 2.0
16 4.0
17 9.0
18 5.0
19 9.0
20 3.0
21 6.0
22 2.0
23 6.0
24 5.0
25 6.0
26 4.0
27 5.0
28 3.0
29 4.0
30 6.0
31 9.0
32 2.0
33 5.0
34 6.0
35 7.0
36 2.0
37 6.0
38 9.0
39 5.0
40 10.0
41 5.0
42 6.0
43 10.0
44 3.0
45 12.0
46 9.0
47 6.0
48 4.0
49 3.0
50 7.0
51 2.0
52 7.0
53 3.0
54 2.0
55 7.0
56 3.0
57 5.0
58 7.0
59 4.0
60 6.0
61 4.0
62 4.0
63 7.0
64 8.0
65 4.0
66 7.0
67 9.0
68 6.0
69 7.0
70 11.0
71 9.0
72 4.0
73 8.0
74 10.0
75 6.0
76 7.0
77 4.0
78 5.0
79 8.0
80 8.0
81 5.0
82 9.0
83 7.0
84 6.0
85 14.0
86 9.0
87 3.0
88 4.0

Answers

This formula calculates the value corresponding to a 90% confidence level using the T.INV function. The first argument, 0.95, represents 1 minus the desired confidence level (0.05 for a 90% confidence level). The second argument, `COUNT(A2:A89)-1`, calculates the degrees of freedom by subtracting 1 from the count of data points.

To find the value from the appropriate probability table to construct a 90% confidence interval in cell B8, you can use the T.INV function in Excel. Here's how you can do it:

1. In cell B8, enter the formula:

  ```

  =T.INV(0.95, COUNT(A2:A89)-1)

  ```

  This formula calculates the value corresponding to a 90% confidence level using the T.INV function. The first argument, 0.95, represents 1 minus the desired confidence level (0.05 for a 90% confidence level). The second argument, `COUNT(A2:A89)-1`, calculates the degrees of freedom by subtracting 1 from the count of data points.

Make sure to adjust the cell references in the formula based on the actual location of your data in the spreadsheet.

Note: The T.INV function returns the value from the Student's t-distribution, which is used for small sample sizes or when the population standard deviation is unknown.

If you have a large sample size (usually considered more than 30), you can use the Z.INV function instead to calculate the value from the standard normal distribution.

Visit here to learn more about confidence level brainly.com/question/22851322

#SPJ11

A mail order company has an 8% success rate. If it mails advertisements to 534 people, find the probability of getting less than 37 sales. Round z-value calculations to 2 decimal places and final answer to at least 4 decimal places. P(X<37)= 0.1814 Population of College Cities College students often make up a substantial portion of the population of college cities and towns. State College, Pennsylvania, ranks first with 71.1% of its population made up of college students. What is the probability that in a random sample of 138 people from State College, more than 50 are not college students? Round the final answer to at least 4 decimal places and intermediate z-value calculations to 2 decimal places. P(X>50) 0.1093 Residences of U.S. Citizens According to the U.S. Census, 67.5% of the U.S. population were born in their state of residence. In a random sample of 190 Americans, what is the probability that fewer than 114 were born in their state of residence? Round the final answer to at least four decimal places and intermediate z-value calculations to two decimal places. P(X<114)= Day Care Tuition A random sample of 54 four-year-olds attending day care centers provided a yearly tuition average of $3958 and the population standard deviation of $640. Part 1 of 2 Find the 99% confidence interval of the true mean. Round your answers to the nearest whole number. 3734 µ< $4182 Part: 1/2 Part 2 of 2 If a day care center were starting up and wanted to keep tuition low, what would be a reasonable amount to charge? Round your answer to the nearest hundred. would be a reasonable amount to charge.

Answers

The probability which is in a random sample of 133 people from State College, more than 50 are not college students is 0.0000313 (rounded to 4 decimal places).

Given that in State College, Pennsylvania, the proportion of college students in the population is 71.1%.

We need to find the probability that in a random sample of 133 people from State College, more than 50 are not college students.

We need to round the final answer to at least 4 decimal places and intermediate z-value calculations to 2 decimal places.

The proportion of college students in State College, Pennsylvania is 71.1%.

Therefore, the proportion of non-college students in State College, Pennsylvania is 100% - 71.1% = 28.9%.

Let X be the number of non-college students in a sample of 133 people from State College, Pennsylvania.

As the sample is random, X follows the binomial distribution with parameters n = 133 and p = 0.289.

The probability of getting more than 50 non-college students can be obtained using the normal distribution approximation to the binomial distribution.

Using the normal distribution approximation, we can convert the binomial distribution to a standard normal distribution using the following formula: Z = (X - np) / sqrt(npq)

Where q = 1 - p is the proportion of college students in the population, and np = 133 x 0.289

= 38.397 and npq = 133 x 0.289 x 0.711 = 9.728.

The probability of getting more than 50 non-college students is : P(X > 50)

= P(Z > (50 - 38.397) / sqrt(9.728))

= P(Z > 3.92)

= 0.0000313 (rounded to 4 decimal places).

For similar question on random sample.

brainly.com/question/29348144

#SPJ4

A local store owner is interested in finding the mean age of her customers. She randomly surveys 82 customers and records their age. Identify the population, sample, variable, type of variable, parameter, and statistic.

Answers

The statistic provides an estimate of the parameter based on the information obtained from the sample.

Identify the population, sample, variable, type of variable, parameter, and statistic in a customer satisfaction survey.

In this scenario, the population refers to the entire group of customers of the local store.

The sample is a subset of this population and consists of the 82 customers who were randomly surveyed.

The variable of interest is the age of the customers, as the store owner wants to determine the mean age.

Age is a continuous numerical variable since it represents a quantitative measurement.

The parameter is the unknown mean age of all customers of the local store, while the statistic is the calculated mean age of the 82 surveyed customers.

Learn more about parameter based

brainly.com/question/31824653

#SPJ11

Write the word sentence as an inequality.

A number y is less than 6.

Answers

Answer:

y - 6

Step-by-step explanation:

y is the number and  it is less than 6 so 6 has to be negative:

y - 6

Y< 6 because less than represents the less than sign. Hope this helps:)


1. Start Time: 3:30 P.M.
End Time: 7:00 P.M.
Elapsed Time:

Answers

Answer:

7:00 = 6:60

Step-by-step explanation:

6:60 - 3:30 = 3 hours and 30 minutes

Listen In 2010 Glacial HVAC, Inc. sold 3,295 air conditioning units in Fulton County. Glacial's largest competitor, Estes Heating and Air, sold 2,759 units during 2010. Calculate Glacial's relative market share. Round your answer to two decimal places

Answers

Glacial HVAC, Inc. had a relative market share of 54.39% in Fulton County in 2010, based on the sale of 3,295 air conditioning units, compared to their largest competitor, Estes Heating and Air.

To calculate the relative market share, we need to divide Glacial HVAC's sales by the total market sales. The formula for relative market share is:

Relative Market Share = Glacial HVAC's Sales / Total Market Sales.

In this case, Glacial HVAC sold 3,295 units, and their largest competitor, Estes Heating and Air, sold 2,759 units. So the total market sales would be the sum of these two figures, which is 3,295 + 2,759 = 6,054 units.

Now, we can calculate the relative market share:

Relative Market Share = 3,295 / 6,054 * 100%.

Evaluating the expression, we find that Glacial HVAC's relative market share is approximately 54.39% when rounded to two decimal places.

This means that Glacial HVAC had a market share of 54.39% in Fulton County in 2010, indicating their position in the market relative to their largest competitor.

Learn more about decimals here:

https://brainly.com/question/30958821

#SPJ11

evalute sin 60. cos 30 sin +sin 30 .cos 60 what is the value of sin(30-60) what can you conclude​

Answers

Answer:

See explanations below

Step-by-step explanation:

evaluate sin 60. cos 30 sin +sin 30 .cos 60 what is the value of sin(30-60) what can you conclude​

According to the trigonometry identity

Sin 30  = 1/2

Sin 60 = √3/2

Cos 30 = √3/2

Cos 60 = 1/2

sin 60. cos 30 +sin 30 .cos 60

= √3/2(√3/2) + 1/2(1/2)

= √9/4 + 1/4

= 3/4 + 1/4

= 4/4

= 1

sin(30-60) = sin30cos60 - cos30sin60

sin(30-60) =1/2(1/2) - √3/2(√3/2)

sin(30-60) = 1/4 -  √9/4

sin(30-60) = 1/4 - 3/4

sin(30-60) = (1-3)/4

sin(30-60) = -2/4

sin(30-60)  = -1/2

hence the former fraction gives a positive values while the later gives a negative

If 55 yards of dirt costs $825.00 what is the constant of proportionality?

Answers

Answer:$15 per yard

Step-by-step explanation: $825 divided by 55 = $15

15 dollars per yard

Please help this is for a friend with co vid- 19

Answers

Answer:

Hey I know this isn’t an answer but your bf Jordan told me to tell you he is looking for you and he needs to talk to you. Sorry again for wasting ur time but he kinda worried

Step-by-step explanation:

Other Questions
the ratio of two natural numbers is 5:9 . if the difference between thrice the larger number and twice the smaller number is 68 , find the two numbers. a set of data items is normally distributed with a mean of 300 and a standard deviation of 50. find the data item in this distribution that corresponds to the given z-score. In Year 1, Kim Company sold land for $80,000 cash. The land had originally cost $60,000. Also, Kim sold inventory that had cost $110,000 for $198,000 cash. Operating expenses amounted to $36,000. 1. Prepare a Year 1 multistep income statement for Kim Company. 2. Assume that normal operating activities grow evenly by 10 percent during Year 2. Prepare a Year 2 multistep income statement for Kim Company. 3. Determine the percentage change in net income between Year 1 and Year 2. 4. Should the stockholders have expected the results determined in Requirement c? What is the solution to the equation 32x 1 = 243? options: A) x = 2 B) x = 3 C) x = 4 D) x = 2 A cup filled with water has more _____ than an empty cup. A. Mass B. Space C. Volume D. Gravity 60 74 81 91 100 110 120 130 140 150 160 176 180 190 200 210 220 230 240 250 A stock just paid a dividend of DO = $1.45. The required rate of return is rs = 13%, and the constant growth rate is g = 6.5%. What is the current stock price? $22.75 $23.76 $24.11 $24.32 $26.50 QUESTION 20 A firm pays a $3.80 dividend at the end of year one (o,), has a stock price of $96, and a constant growth rate (g) of 4 percent. Compute the required rate of return (ke). (Do not round intermediate ca If n-350 and p (p-hat) =0.34, find the margin of error at a 99% confidence level p(1-P) Recall: M.E. - z 72 Give your answer to three decimals Check Answer QUESTION 1 (20 MARKS)Ahmad works as a manager in XYZ Bhd. Though he is a manager there he has no authority to buy anything for his department. In January 2022, Ahmad bought 10 laptops for his department without the permission of the top management. XYZ Bhd is now refusing to pay for laptops. Discuss who should pay for these laptops? If Ahmad is bound by the transaction, then how can he avoid liability. Organizations do not always stay with the basis of departmentalization they first adopt, as is the case with Microsoft, explain. Give examples. 150-300 words what is the temperature of a star (in kelvin) if its peak wavelength is 425 nm? your answer: the moderating effect of the financial literacy on thedecision to use financial technologycan you elabotare the research paradigm/ theory basedon the title ?? An undamped mass-and-spring system undergoes simple harmonic motion. Is this process reversible or irreversible? Reversible Irreversible Can you tell me the reason why?Simple Harmonic MotionIn physics, simple harmonic motion (SHM) is a special case of oscillatory motion. In SHM, the restoring force is directly proportional to the displacement and acts into the opposite direction. If no damping is involved in SHM, the oscillation will go on forever. define water pollution, point source pollution, and non-point-source pollution. which of the two (point source or non-point-source) is easier to identify? which is easier to legislate? which currently poses the greatest threat to freshwater? Who has the comparative advantage when it comes to cleaning the house? Listen to the question and choose the correct response.Nos despertamos a las siete.Te despiertas a las siete.Me despierto a las siete.Se despierta a las siete. 2. Suppose that an incompressible fluid passes through a pipe that changes in cross-sectional area from 0.25 m2 to 0.125 m2. How will this affect the fluid velocity? (10 points) which of the following is the most likely explanation for the lack of a filter blocking the passage of alcohol between the maternal and fetal circulations in humans?such a barrier would probably also block important molecules that need to be passed to the fetus.alcohol has some positive effects on the fetus, so evolution has resulted in an intermediate level of filtering that blocks all but the worst abuses of alcohol.there has not been enough time to evolve such a barrier.the maternal and fetal blood mix directly together in an area with many villi, so a barrier is impossible. Suppose g is a function from A to B and f is a function from B to C. Prove the following statements: a) If fog is onto, then f must be onto. b) If fog is one-to-one, then g must be one-to-one. c) If fog is a bijection, then g is onto if and only if f is one-to-one. d) Find examples of functions f and g such that fog is a bijection, but g is not onto and f is not one-to-one. You have four different books and are going to put two on a bookshelf. How many different ways can the books be ordered on the bookshelf?Group of answer choicesA. 4B. 8C. 32D. 6E.12F. 24