An SRS of 2,500 individuals was taken from a large city to estimate the percentage of city residents with a graduate degree. 555 people in the sample had a graduate degree. The percentage of individuals in the city with a graduate degree is estimated as 22.2%. The estimated standard error is closest to:_______a. 1%b. 10% c. 0.1%

Answers

Answer 1

Answer:

The option is  b

Step-by-step explanation:

From the question we are told that

    The sample size is  n =  2500

   The number with a graduate degree is  k =  555

    The sample  proportion is [tex]\^ p = 0.222[/tex]

Generally the standard error is mathematically represented as

           [tex]SE = \sqrt{\frac{\^ p (1- \^ p )}{n} }[/tex]

=>        [tex]SE = \sqrt{\frac{0.222 (1- 0.22 )}{2500 } }[/tex]

=>        [tex]SE = 0.010[/tex]

Converting to percentage

           [tex]SE = 0.010 * 100[/tex]

=>       [tex]SE =10\%[/tex]


Related Questions

Let F(x) = 4^x
The new fiction g(x) = f(x-1) +3
Write the new equation for g

Answers

oh my fod i’m sorry i wish i could help but i just need to answer someone random, i hope someone answers it soon man

Find the slope of the line
y = 1/4x + 1/3

Thanks!

Answers

The slope would be m=1/4. Hope this helps :)

Answer:

0.0825

Step-by-step explanation:

1/4=0.25

1/3=0.33

Solve for the variable.
5t - 3 = 3t + 9
F
t = 6
G
t = 9
H
t = 3
J
t = 8

Answers

Answer:

F. t = 6

Step-by-step explanation

5t - 3 = 3t + 9

add 3t to both sides

2t - 3 = 9

add 3 to both sides

2t = 12

divide both sides by 2

t = 6

Find the sum. 637,391 + 372,088 *

Answers

Answer:

1,009,479

Step-by-step explanation:

dude there 8a some thing called as a CALCULATOR

Let n = 5.

What is the value of the expression 9n2−2−n?

Enter your answer in the box.

Answers

Answer:

9 (5) 2 - 2 - 5 = 83

Questions 7 & 9
For each label the “Extra Congruency Information.” Options- none, reflexive property, or vertical angles. Also label the “Postulate.” Options- SSS, SAS, ASA, AAS, HL, not congruent. (if you need help understanding please comment)

Answers

Answer:hart

Step-by-step explanation:

69 or 420? ................​

Answers

Answer:

420 ayeee

Step-by-step explanation:

Answer:

I meeeaaan, both are pretty good numbers ;P

Step-by-step explanation:

THIS IS 15 POINTS PLEASE
g(x) = -5x – 3
g(-2) = ?

Answers

Substitute (-2) into x
-5(-2) - 3 = 7
Just sub -2 for x and that’s your answer

You are at a restaurant and the check comes to a total of $11. If you want to leave a 17% tip, how much total money should you pay, to the nearest cent?

Answers

Answer: $12.87

Step-by-step explanation:

$11 x .17 = $1.87

$11 + $1.87 = $12.87

3
The slope of the line that passes through the points (0,3) and (5, 13) is

Answers

i think the answer is 2

A sector of a circle of radius 80 mi has an area of 1600 mi2. Find the central angle (in radians) of the sector.

Answers

Answer:

The central angle of the sector is 0.5 radian

Step-by-step explanation:

given;

radius of the circle, r = 80 mi

area of the sector, A = 1600 mi²

Area of sector is given by;

A = ¹/₂r²θ

where;

θ is the central angle (in radians) of the sector

[tex]\theta = \frac{2A}{r^2}\\\\\theta = \frac{2*1600}{80^2}\\\\ \theta = 0.5 \ radian[/tex]

Therefore, the central angle of the sector is 0.5 radian

The central angle (in radians) of the sector is 28.66 degrees

The formula for calculating the area of a sector is expressed as:

[tex]A = \theta/360 \times \pi r^2[/tex]

Given the following parameters

radius r = 80mi

Area of sector A = 1600mi²

Substitute the given parameters into the formula

1600 = Ф/360 * (3.14)(80)²

1600 * 360 = 20,096Ф

Ф = 576000/20,096

Ф =28.66 degrees

Hence the central angle (in radians) of the sector is 28.66 degrees

Learn more here: https://brainly.com/question/12792310

Solve "43 -
O a = 3/5
O a = 3/4 .
O a = 4/3
O a = 5/3

Answers

Answer:

the answer to this question is 4/3

Answer:

C 4/3

Step-by-step explanation:

you're welcome <3

PLEASE HELP (must show work) Show all work to factor x4 - 17x2 + 16 completely.

Answers

there i hope this helped

Out of 60 people at the movies, 21 are kids. What percent are adults?

Answers

Answer: it is 65 % 39/60=13/20

Step-by-step explanation: because the kids are 21/60 and the adult are 39/60

Which division problem is shown by the model?

Answers

Answer:

Ithink this would be 12/3

Step-by-step explanation:

12 blocks in total grouped into 3 groups.

The division problem shown here is 12 columns divided into a group of  3.

what is a picture model?

Using models, or pictures, can help to visualize and solve math problems. Models can include number blocks, in which a small square equals 1, a long rectangle equals 10, and a large square equals 100.

Given here are 12 columns arranged in 3 square boxes

thus the picture problem must be arranging 12 columns using 3 groups

therefore, 12÷3 = 4 columns

Hence, the division problem is arranging 12 groups in 3 groups of 4 columns in each group.

Learn more about a picture models here:

https://brainly.com/question/28394013

#SPJ2

Karl bought ​3 1/2​ gallons of milk that cost $2.70 per gallon.

What was the total cost of the milk?

Answers

3.5 gallons of milk would cost $9.45

Answer:

The total cost would be $9.45

Step-by-step explanation:

Math standard form. help!

Answers

Answer:

y=mx+b is slope-intercept form

Ax+By=C is standard form.

IN y=mx+b, m represents the slope and B represents the y intercept.

To switch from standard form to slope-intercept form all we need to do is get y alone. thats it. By folowing these steps:

-6x+5y=-30

-6x+6x+5y=-30+6x - this cancels the x on the left side of the equation bringing us one step closer to getting y alone

5y=-30+6x

5y / 5=(-30+6x) / 5 -this last step leaves y alone and brings us to slope intercept form.

y=-6+30x

y=30x-6 - i switched the 30x and 6 because y=mx+b not y=b+mx

y=30x-6

SInce m represents the slope and b represents the y itnercept, 30 is the slope and -6 is the y intercept

30=m(slope)

-6=b(y-intercept)

Btw because the slope is 30 it means the line with point like so: / since it has a positive slope.

Hope this helps!

Step-by-step explanation:

Find a point on the line and the line's slope. y - 1 = -4/3 (x -4)
point on line:
slope:

Answers

Answer:

[tex]\displaystyle\text{Slope: } -\frac{4}{3}[/tex]

Point (4,1)

Step-by-step explanation:

The Equation of the Line

The point-slope form of the equation of a line is:

y - k = m ( x - h )

Where m is the slope and (h,k) is a point through which the line passes.

The given line is:

[tex]\displaystyle y-1=-\frac{4}{3}(x-4)[/tex]

If we compare the equation of this line, both the slope and the point through which is passes are clearly identifiable:

Slope:

[tex]\mathbf{\displaystyle -\frac{4}{3}}[/tex]

Point (4,1)

List the first 5 Multipluls of 30

Answers

Answer:

30*1 = 30 - 1st

30*2 = 60 - 2nd

30*3 = 90 - 3rd

30*4 = 120 - 4th

30*5 = 150 - 5th

Above are the first 5 multiples of 30.

Answer:

30,60,90,120,and 150. I hope this helps:)

Step-by-step explanation:

Find the value of x and YZ if Y is between X and Z.
XY = 4x, YZ = x, and XZ
25

Answers

Answer:

The value of x is 5

The length of YZ is 5 units

Step-by-step explanation:

If a point lies on a line segment, then it divides it into 2 parts, the sum of their length equals the length of the line segment

Let us use this fact to solve the question

∵ Point Y is between points X and Z

→ By using the fact above

XY + YZ = XZ

∵ XY = 4x and XZ = x

∵ XZ = 25

→ Substitute then in the equation above

4x + x = 25

→ Add the like terms in the left side

∴ 5x = 25

→ Divide both sides by 5 to find x

∵ [tex]\frac{5x}{5}[/tex] = [tex]\frac{25}{5}[/tex]

x = 5

The value of x is 5

∵ YZ = x

∵ x = 5

∴ YZ = 5

The length of YZ is 5 units

B is between A and C. If AC = 31, AB = x–6, and BC = 2x+10, find the value of x. (Hint: Draw a picture.)

x =

Answers

I think it’s a because it’s better

0
The sum of three numbers is 10 The sum of twice the first number, 3 times the second number, and 4 times the third number is 27 The difference between 6 times
the first number and the second number is 35. Find the three numbers
first number
second number
third number

Answers

Answer:

vjbsvjbavljjvldbsef

Step-by-step explanation:

help me pleaseeeeee​

Answers

Answer:

c

Step-by-step explanation:

Answer:1. D. 12 2/72. B. 22 7/9Hope this helps!!:D

Given f(x) = 4x+ 7 and g(x) = -3x+ 5 find g (f(-5).
20
44
-1
87

Answers

Answer:

44

....................

Assume y varies inversely as x. If y = 60 when x = 80, find x when y = -20​

Answers

Answer:

I think the answer is -40

Step-by-step explanation:

what I did was added the -20 +-20

Answer:

x=0

Step-by-step explanation:

so we are going to first subtract by both sides,

x=80       y=60

  -20           -20

------------------------

x=60     y=40

then again,

x= 60 y=40

  - 20    -20

---------------------

x=40 y=20

and again,

x=40 y=20

 -20    -20

-----------------

x=20 y=0

then lastly again,

x=20 y=0

 -20   -20

------------------

x=0   y=-20

ta da, hopefully this is helpful

Carry out your immediate computations to at least 3 decimal places

Answers

.009 is the best good luck

Jordan invests £700 into his bank account.
He receives 10% per year simple interest
How much will Jordan have after 3 years?
Give your answer to the nearest penny where appropriate

Answers

Answer:

Jordan will have $ 910.00 after 3 years

Step-by-step explanation

Please help asap, 10 points

Answers

Answer:

3x^2

................

Triangle ADE is enlarged to form triangle ABC. What is the scale factor?
6cm,6cm,7cm,7cm,5cm,10cm

Answers

I need this answer to please when you get the answer will you let me know thank you!!

Use the substitution method to solve the system of equations. Enter your
answer as an ordered pair.
x + y = 11
-X = -y-9

Answers

Answer:

Here ya go

Step-by-step explanation:

Examples: 1+2, 1/3+1/4, 2^3 * 2^2

(x+1)(x+2) (Simplify Example), 2x^2+2y a x=5, y=3 (Evaluate Example)

y=x^2+1 (Graph Example), 4x+2=2(x+6) (Solve Example)

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