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 240 rooms.During February,a sample of 25 days has a sample mean of 370 rooms.
-True or False: Referring to Table 8-7,a 99% confidence interval will contain 99% of the sample mean number of rooms rented daily in a given month.

Question

Quizplus · Accepted Answer

Table 8-7 provides critical values for constructing confidence intervals for the population mean, not for the sample mean. Therefore, it is not possible to determine if a 99% confidence interval will contain 99% of the sample mean number of rooms rented daily in a given month just by referring to this table.

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