Question: Randomly selected statistics students of the author participated in an experiment to test their ability to determine when 1 min (or 60 seconds) has passed.

Randomly selected statistics students of the author participated in an experiment to test their ability to determine when 1 min (or 60 seconds) has passed. Forty students yielded a sample mean of 58.3 sec. Assume that σ = 9.5 sec.

a. Find the best point estimate of the mean time for all statistics students.

b. Construct a 95% confidence interval estimate of the population mean of all statistics students.

c. Based on the results, is it likely that their estimates have a mean that is reasonably close to 60 sec?

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