1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
notsponge [240]
3 years ago
5

A political action committee is interested in finding out what proportion of voters will

Mathematics
1 answer:
balandron [24]3 years ago
4 0

Answer:

n=\frac{0.93(1-0.93)}{(\frac{0.09}{1.96})^2}=30.875  

And rounded up we have that n=31

Step-by-step explanation:

First we need to find the critical value for the margin of error desired. The confidence level is 0.95 so then the significance is \alpha=1-0.95=0.05 and the critical value for this case would be:

z_{\alpha/2} =\pm 1.96

The margin of error for the proportion interval is given by this formula:  

ME=z_{\alpha/2}\sqrt{\frac{\hat p (1-\hat p)}{n}}    (a)  

And on this case we have that ME =\pm 0.09 and we are interested in order to find the value of n, if we solve n from equation (a) we got:  

n=\frac{\hat p (1-\hat p)}{(\frac{ME}{z})^2}   (b)  

The estimated proportion for this case is \hat p =0.93. And replacing into equation (b) the values from part a we got:

n=\frac{0.93(1-0.93)}{(\frac{0.09}{1.96})^2}=30.875  

And rounded up we have that n=31

You might be interested in
The principal surveyed 200 students one what there favorite food is. The results showed that 125 of the students choose nachos a
Inga [223]
125% because it is out of 200 so that would make the answer 125%.
6 0
3 years ago
a store has 18 red beach balls and 17 green beach balls in boxes of 5 beach balls each how many boxes of beach Balls are in stor
Stells [14]
10 beach balls are needed
4 0
3 years ago
Read 2 more answers
Nine is less than or equal to the difference of a number and 1.??
vfiekz [6]

Answer:

Less than?

Step-by-step explanation:

Don't trust me on this i dont know but I tried

8 0
3 years ago
-3(-6b +5) please help me
tamaranim1 [39]

Answer:

b = 5/6

Step-by-step explanation:

Solve for b:

3 (6 b - 5) = 0

Divide both sides of 3 (6 b - 5) = 0 by 3:

(3 (6 b - 5))/3 = 0/3

3/3 = 1:

6 b - 5 = 0/3

0/3 = 0:

6 b - 5 = 0

Add 5 to both sides:

6 b + (5 - 5) = 5

5 - 5 = 0:

6 b = 5

Divide both sides of 6 b = 5 by 6:

(6 b)/6 = 5/6

6/6 = 1:

Answer: b = 5/6

8 0
2 years ago
Janice runs a 4% composition for the medical equipment that she sells is
IceJOKER [234]
The total cost of the equipment will be $45,598.50
7 0
3 years ago
Other questions:
  • A building across the street casts a shadow that is 24 feet long. your friend is 6 feet tall and casts a shadow that is 4 feet l
    8·1 answer
  • -13=m-7 how can i get my answer
    10·2 answers
  • Put (x+4)^2+(y+3)^2=25 into general form
    11·1 answer
  • What is the exact solution to the system of equations shown on the graph?​
    11·2 answers
  • Students must purchase a ticket to attend the show. The committee wants to have $400 remaining from ticket sales, after paying f
    10·1 answer
  • What is 1/5 +2/4?the simplest form​
    13·2 answers
  • What is the answer to this question?
    11·1 answer
  • Find the length of the third side. If necessary, round to the nearest tenth.<br> 24<br> 14
    9·2 answers
  • When five is subtracted from
    5·1 answer
  • Sketch a generic rectangle to represent the product 3(x+2). Then write an equivalent expression​
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!