Question: Can someone please explain samples and population An administrator in charge of undergraduate education on a large campus wanted to estimate the average number of

Can someone please explain samples and population

An administrator in charge of undergraduate education on a large campus wanted to estimate the average number of books required by instructors. Using bookstore data, she drew a random sample of 25 courses for which she obtained a sample mean of 2.8 books and a sample standard deviation of .4. Construct a 99% confidence interval to estimate the mean number of books assigned by instructors on campus.

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