A quality control expert at a drink bottling factory took a random sample of 9 bottles from a
production run of over 1,000 bottles and measured the amount of liquid in each bottle in the
sample. The sample data were roughly symmetric with a mean of 505 mL and a standard
deviation of 6 mL.
Based on this sample, which of the following is a 95% confidence interval for the mean
amount of liquid per bottle (in mL) in this production run?

Answers

Answer 1

Answer: It's in the screenshot

Step-by-step explanation:

A Quality Control Expert At A Drink Bottling Factory Took A Random Sample Of 9 Bottles From Aproduction
Answer 2

Using the t-distribution, as we have the standard deviation for the sample, it is found that the 95% confidence interval for the mean amount of liquid per bottle (in mL) in this production run is (500.39, 509.61).

What is a t-distribution confidence interval?

The confidence interval is:

[tex]\overline{x} \pm t\frac{s}{\sqrt{n}}[/tex]

In which:

[tex]\overline{x}[/tex] is the sample mean.t is the critical value.n is the sample size.s is the standard deviation for the sample.

The critical value, using a t-distribution calculator, for a two-tailed 95% confidence interval, with 9 - 1 = 8 df, is t = 2.306.

The other parameters are given as follows:

[tex]\overline{x} = 505, s = 6, n = 9[/tex]

Hence:

[tex]\overline{x} - t\frac{s}{\sqrt{n}} = 505 - 2.306\frac{6}{\sqrt{9}} = 500.39[/tex]

[tex]\overline{x} + t\frac{s}{\sqrt{n}} = 505 + 2.306\frac{6}{\sqrt{9}} = 509.61[/tex]

The 95% confidence interval for the mean amount of liquid per bottle (in mL) in this production run is (500.39, 509.61).

More can be learned about the t-distribution at https://brainly.com/question/16162795


Related Questions


PLS ACTUALLY ANSWER

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Answer:

The first and second do not but the third does because the third follows a pattern that would make sense numarically being every 2 positive numbers one negative is added but the first to dont follow a pattern that makes sense

Hope this helps

Answer:

Middle and far right one

Step-by-step explanation:

X values cannot repeat

can someone please explain i am having a hard time with the math homework​

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Answer:

x= -1

Step-by-step explanation:

you have five of the bigger pieces and 6 of the smaller pieces and you have to get to a one. I plugged in the awnser choices and one worked for me

please i need the answer

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Answer:

12m i think

Step-by-step explanation:

Answer: If it is finding area the answer the area is 9216m if it is perimeter and I believe it is then the perimeter is 40m

what value of n make this equation true 12(n+6)=96

Answers

Answer:

2

Step-by-step explanation:

(6+2)x 12 =96

Answer:

2

Step-by-step explanation:

12(2+6)=96

12×8=96

I need 20 characters so yeah. Have a great day.

Distance between -2 and 4 1/2

Answers

Answer:

6 1/2

Step-by-step explanation:

Distance is always positive

Add the absolute values of each of the numbers

|-2| + |4 1/2| = 2 + 4 1/2 = 6 1/2

Helpam in fourth I don't know how to do this :(

Answers

Answer:

Step-by-step explanation:

4/1000=0.0004

200/10= 20

8/100=0.08

30/100=3

7/1000=0.0007

6/10=0.6

please answer assapapapapppp

Answers

That is the answer it was to long to write down

What are the coordinates of the image of the point after a dilation by a scale factor of 3 with the origin as the center of dilation, followed by a translation over the -axis?

Answers

Answer:

Step-by-step explanation:

3x

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Answers

Answer:
It’s a, no solutions

i need the area of this shape the top is a triangle the bottom is a square

Answers

Answer:

Area = 146.75 m^2

Step-by-step explanation:

Triangle:

a = 1/2bh

a = 1/2 x 10 x 9.35

a = 46.75

Square:

a = lw

a = 10 x 10

a = 100

46.75+100 = 146.75

What is the perimeter of this trapezoid?

Answers

first find the length of the larger base. Then, find the sum of all of the sides.

what theorem is this
sss,sas,asa,aas,hl, or not enough info​

Answers

ASA - verticals angles are equal, two sides are equal, and two other angles are marked equal

Someone look at the photo and answer I need help

Answers

Step-by-step explanation:

To find the composite function, it says

[tex](f \: o \: g)(x)[/tex]

means we put the function g(x) into f(x) so that means it looks like

[tex]( \sqrt{x}) {}^{2} - 4[/tex]

Which equal

[tex]x - 4[/tex]

So that expression above is the answer.

To find the range we must find the range of the inner function ,(g(x) and then see which parts it corresponds of f(x).

The range of a g(x) which is a radical function is all real numbers.

The range of a f(x) which is a quadratic function is all real numbers greater than or equal to -4.

This means for our function to work we can use any numbers as long as it greater than -4.

So we would represent that as x is all real numbers as long as x is greater than or equal to -4

In interval notation this would be

[-4,+ infintiy)

The length and width of a rectangle are 4 feet and 3 feet, respectively. A similar rectangle has a width of 9 feet. What is the length of the second rectangle? A. 9 ft C. 14 ft B. 12 ft D. 16ft

Answers

The answer is B, hope this helps

by what number should-15/56 be divided to get -5/6

pls pls pls pls I need your help ​

Answers

Answer:

The desired divisor is n = 21

Step-by-step explanation:

Let that number be n.  Then:

-15/56        -5

---------- = ---------

     n            6

Through cross-multiplication we get:

(-15/56)*6 = -5n, which reduces to:

(-15)(7) = -5n, or 3(7) = n

The desired divisor is n = 21

I need help with the question

Answers

Probably D I’m not sure

What is the surface area of the cone? Express your answer in terms of π.

Answers

Answer:

surface area of a cone = 132.935πft

Step-by-step explanation:

to find the surface area of a cone

given that

radius = 5ft

height of cone = 21ft

recall that the formulae for finding the surface area of a cone = πr( r + √ h² + r²)

so,

surface area of a cone = πr( r + √ h² + r²)

surface area of a cone = π x 5( 5 + √ 21² + 5²)

surface area of a cone = 5π ( 5 + √ 441 + 25)

surface area of a cone = 5π( 5 + 21.587)

surface area of a cone = 5π (26.587)

surface area of a cone = 132.935πft

Answer:

If you want just the area of the circle (the surface area) then it is 78.5

Step-by-step explanation:

radius=5

[tex]5^{2} =25[/tex]

π=3.14

25×3.14= 78.5

Can you please answer this honestly no need for explanation

Answers

Answer:

angle 1 = 146

angle 3 = 146

Step-by-step explanation:

34 - 180= 146

Answer:

Angle 1= 34degree

Angle 3= 34degree

Louis's mother sent him to the grocery store with $20. she told him to purchase a 16 oz tub of cream cheese and use the rest of the money to purchase fresh bagels from the bakery. The cost of the 16 oz tub of cream cheese is $5.98 and each bagel costs $1.99. I will give brainliest

A.)Write an inequality that can be used to determine how many bagels, Louis can buy.

B.)Using your inequality, algebraically determine the number of bagel Louis can buy.

C.)Louis says that he can buy 8 bagels. Based on your solution to the inequality, explain if louis can or cannot purchase 8 bagels.

Answers

Answer:

c

Step-by-step explanation:

A

B

She can buy 5-6

C

Louis cannot purchase the bagels because she does not have enough money

Help ASAP I’ll mark you as brainlister

Answers

The length of an arc AB from the given circle with radius 6in is 15.7in

Length of an arc

The formula for calculating the length of an arc is expressed as:

L = r theta

where

r is the radius = 6in

theta is the central angle = 150 degrees = 5/6π rad

Substitute

L = 6(5/6π)

L = 5π

L = 5(3.14)

L = 15.7in

Hence the length of an arc AB from the given circle with radius 6in is 15.7in

Learn more on length of arc here: https://brainly.com/question/2005046
#SPJ1

need help ASAP, please

Answers

Answer:

1) D. 343.17

2) C but not sure

Step-by-step explanation:

1) area of triangle is 1/2* base* height= 1/2*18*24 = 216ft²

area of circle is πr²

area of semicircle is πr²/2

diameter=18

radius= 18/2=9

πr²/2 = (22/7* 9*9) / 2

=127.2 (approx)

total area = 127.2+ 216= 343.2

2) I dont know...I think C

What is the volume of the cylinder below? Write your answers in terms pi

Hight 11.5cm
radius 6cm​

Answers

Answer:

1,300.6224 cm2

Step-by-step explanation:

V=Abxh

V= 113.0976 cm2 (11.5 cm)

V= 1300.6224 cm2

but first the area of the base is calculated:

Ab= πr2

Ab=3.1416(6)2

AB= 3.1416(36)

Ab=113.0976 cm2

Wich scientific notation is correct?

Answers

option d: 4.2x10^-21

Find the value of x.

Answers

Answer:

68

Step-by-step explanation:

1) Find the interior angle using relations of angles in straight line I.e ( sum of angles in a straight line is 180 ) and we know the sum of all the interior angle of quadrilateral is 360 degree .

2) Solve further for x.

(HELP NEEDED ASAP Will give brainliest) What is the lateral surface area?
(all square inches)
80
86
60
92

Answers

the answer is 92 square inches

Answer:

80

Step-by-step explanation:

Area of latera = 3 bh = 10X3 +10x2.5 +2.5x10 = 30+25+25 = 80

b/c the 2 lines are equal

Roy placed an order for 3/4 of a sack of brown lentils and 1/4 of a sack of green lentils. How much more brown lentils did Roy order?

Answers

Answer:

1/2

Step-by-step explanation:

brown sack = 3/4

1/4 green sack = 1/4

3/4 - 1/4

3 - 1 /4

2/4

1/2

jake invested $800 in a savings account at a 2.5% annual interest rate. He made no deposits or withdrawals on the account for 2 years. The interest was compounded annually. Find, to the nearest cent, the balance in the account after 2 years.

Answers

Answer:

$840.5

Step-by-step explanation:

x=800[tex](1.025)^{2}[/tex]

x=840.5

PLEASE HELP MAX POINTS AND BRAINLIEST!!!Find the length of the longest nail that could fit entirely within a cylindrical can of radius 2 inches and height of 6 inches.​

Answers

Answer:

a 7.2 inch nail

Step-by-step explanation:

using the Pythagorean theorem:

the diagonal distance of a 6" height and a 2" radius (4" diameter) would be:

D² = 6² + 4² = 36 + 16 = 52

D = √52 = 7.21 inches

Find diagonal that's the answer

Use Pythagorean theorem

H²=P²+B²H²=6²+(2+2)²H²=36+16H²=52H=√52

help me please can someone please help i beg you. i have to say why this is wrong and solve this correctly. i beg you please

Answers

Answer:

The person solving the problem first subtracted 6 from 15. Since the cube root is next to the six, the problem should be read as [tex]15-6(\sqrt[3]{\frac{-1000}{27} } )[/tex] rather than [tex](15-6)(\sqrt[3]{\frac{-1000}{27} } )[/tex].

To solve it correctly, first find the cube root of -1000/27: -10/3Next, multiply by 6: -20Finally, subtract from 15: 35

please lmk if anything is wrong with my answer, hope this helps :)

HELP ME ASAP!!!!!!!!!

friend request if the answer is correct plus you will get thanks, brainliest and a star rating of excellent! Good Luck!

Answers

Answer: A is 5 B is 6 C is 3

D is 7

Step-by-step explanation: I hope u get ur answer- and if I’m wrong plz tell me I took this lesson 2 days ago-

Answer:

Option:D

According to question,

Mass = m/3

Volume = 5*v

Density = mass/volume

=1/15*(m/v)

So its option D

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