Algebra homework

Question

A researcher surveyed 150 high school students and found that 68% played a musical instrument. What would be a reasonable range for the population mean?

A. 60% - 76%

B. 56% - 76%

C. 63% - 73%

D. 58% - 78%

Answer 1

In order to find the population mean of 68%, its range should be found by subtracting the lowest population from the highest population.

The answer is D. 58% to 78%.

Answer 2

C. 63%-73% which is a 10 range around 68