Question
For each of the problems unless stated otherwise. First state what is given in the problem and the formula needed to calculate the problem. Then
For each of the problems unless stated otherwise. First state what is given in the problem and the formula needed to calculate the problem. Then calculate the problem both by hand and in excel. Copy and past the formula used in excel. Make sure the answers are easy to identify in both sections. By completing the questions by hand and in excel it provides a double check on your work.
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. Construct a 99% confidence interval for the mean number of rooms rented daily in a given month. (4 pts)
Given
Formula to solve problem
Excel formula
Hand calculation
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