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.

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”?

Question

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.

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”?

zuha · Answer

My answer is this

A. No
B. Biased because of the word "lengthy"
C. 54-51=3. So 3/54 x 100

But I think that my answer for Q A is insufficient, please help me with explanation , and are the rest of answers correct?