A random sample of 100 college students is taken from the student body of a larg
ID: 3046282 • Letter: A
Question
A random sample of 100 college students is taken from the student body of a large university. Each student estimates the number of hours spent studying each week. Assume that a mean of 20 hours describes the weekly study estimates for the entire student body (m). At this point you can describe the sampling distribution of the mean as having a mean (expected value) that:
a) approximates 20 hours
b) equals 20 hours
c) lies within a couple of hours of 20
d) equals the observed sample mean
YOU MUST EXPLAIN YOUR ANSWER TO THIS QUESTION. {This means you must write a sentence or two of explanation)
Explanation / Answer
b) equals 20 hours
because by central limit theorem mean or expected value of sampling distribution of sample mean will be same as population mean