The city of Valley Grove is considering shortening the length of the school day. The school board hired Mr. Kent to do a survey to help them decide what to do.

Question

What I have to answer:

a. Mr. Kent interviewed 54 students as they left the school. Is this a random sample? Explain.

b. Mr. Kent used this survey question: "Should the lengthy school day, which now extends for 7.5 hours, be shortened to 6 hours?" Is this question biased or fair? Explain.

c. Of the 54 responses he received, 51 were "yes." The rest were "no." What percent of the responses were "no"?

Just need help to get these answers, and once I do pls check if right...

Answer 1

A very good answer on brainly (not mine) already exists:
brainly.com/question/3583343#:~:text=Kent%20interviewed%20the%2054%20students,he%20took%20all%20of%20them.

Answer 2

Well, other people than students should be part of the sample, like teachers and bus drivers and parents.

It says "lengthy school day" which implies that the school day is too lengthy which is a bias already in the wording of the question; moreover I suspect that the majority of students might be biased toward more play time.

100 * (54-51)/54 = 100 (3/54) = 5.56 %