Question

A hotel chain wants to estimate the mean number of rooms rented daily in a given month. The population of rooms rented daily is assumed to be normally distributed for each month with a standard deviation of 240 rooms. During February, a sample of 25 days has a sample mean of 370 rooms. True or False: A 90% confidence interval calculated from the same data would be narrower than a 99% confidence interval.

Answer 1

The problem is TRUE because as listed, "During February, a sample of 25 days has a sample mean of 370 rooms" that gives you the answer.