TABLE 8-7 a Hotel Chain Wants to Estimate the Mean Number of Number

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TABLE 8-7
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 24 rooms. During February, a sample of 25 days has a sample mean of 37 rooms.
-Referring to Table 8-7, a 90% confidence interval calculated from the same data would be narrower than a 99% confidence interval.