Which sample size, n, gives the smallest standard deviation of the null distribution of sample proportions if the hypothesized long-run proportion π is 0.25??

Complete Question

Which sample size, n, gives the smallest standard deviation of the null distribution of sample proportions if the hypothesized long-run proportion π is 0.25?

Select one:

a. 50

b. 30

c. 40

d. 20

The correct option is  a

Step-by-step explanation:

Generally standard deviation for   is mathematically represented as

Where   n is the sample size

So from the equation we see that

So this tell us that the more the sample size the lesser the standard deviation so the correct of to is A

answer: true

step-by-step explanation:

5x+40

5(x + 8)

7x - 49

7(x - 7)

18x + 9

9(2x + 1)

15x - 10

5(3x - 2)

step-by-step explanation:

for number one all you have to do is factor 5 out of 5x + 40

for number 2 factor 7 out of 7x - 49

for number three factor 9 out of 18x + 9

for number four factor 5 out of 15x - 10