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.

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Jeter

11 December, 10:36

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Ralph Herring · 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.