Suppose you record 83 successes out of a random sample of 200 drawn from a population that yielded a proportion of successes of .40 in a previous study.

if you were to calculate a standardized test statistic for a hypothesis test about the population proportion, where h subscript 0 : p subscript 0 equals.40, what would your standard deviation of p with hat on top look like?

0.0346

Step-by-step explanation:

Required formula : , where p= population proportion

n= sample size.

Let p be the population proportion for successes .

As per given , we have

Null hypothesis :

n= 200

Standard deviation of =

Hence , the required standard deviation of = 0.0346

$12. that is my answer.

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).