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In: Statistics and Probability

A recent survey asked 64 CMU students, “In the past year, about how many books did...

A recent survey asked 64 CMU students, “In the past year, about how many books did your read?” The results indicated a mean of 16.8 books with a S.D. of 6,7 books.

a. What is the Standard Error of the estimate of the population mean?

b. What is the Margin of Error at a C.L. of 97%?

c. What is the right boundary of the C.I. at a C.L. of 97%?

d. At a 99% C.L., if the researcher wants to limit the error within 1.5 book range, what size of the sample is needed?

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orchestra answered 2 years ago
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