2.888, 0.423
2.123, 0.694
2.808, 0.423
2.974, 0.511
2.288, 0.637
A hotel chain wants to estimate the average number of rooms rented daily in
each month. The population of rooms rented daily is assumed to be normally
distributed for each with a standard deviation of 24 rooms. During January, a
sample of 16 days has a sample mean of 48 rooms. This information is used to
calculate an interval estimate for the population mean to be from 40 to 56
rooms. What is the level of confidence of this interval?
86.14%
81.64%
84.61%
64.81%
68.41%
Under H0, what is the distribution of this test statistic?
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