Answer:
The mean of sampling distribution of the proportion of the students who prefer later start times for school
μₓ = p = 0.63
Explanation:
Explanation:-
Given sample size 'n' =200
given data Of the 200 students surveyed at the local high school, 126 say that they prefer earlier start times for school
sample proportion
![p = (x)/(n) = (126)/(200) = 0.63](https://img.qammunity.org/2021/formulas/mathematics/college/s17qebwuni2de2n6ws7meahvjjhl7qhr5q.png)
The mean of sampling distribution of the proportion of the students who prefer later start times for school
μₓ = p = 0.63
Standard deviation of the proportion
![S.D = \sqrt{(p(1-p))/(n) } = \sqrt{(0.63(1-0.63))/(200) } = 0.034](https://img.qammunity.org/2021/formulas/mathematics/college/olugaqgnyesfqs9svcakngj4qqba7vuu0x.png)