b) You are to estimate the average number of hours that students who are planning to enroll at EMU in the fall semester will be taking.

b) You are to estimate the average number of hours that students who are planning to enroll at

EMU in the fall semester will be taking. You don't know the standard deviation (or variance),

but from previous semesters you have an idea about the range. Historically, the lowest number

of hours taken is 1 (usually a PE course). At the other end of the spectrum, the most hours a

student has ever been enrolled for is 24. Using industry convention, you want your statistic to be

within .5 credit hours of the population parameter with a 95% level of confidence. What is the

required size for your simple random sample?