Question

Because of staffing decisions, managers of the Gibson-Marimont Hotel are interested in the variability in the number of rooms occupied per day during a particular season of the year. A sample of 28 days of operation shows a sample mean of 291 rooms occupied per day and a sample standard deviation of 33 rooms.

1. What is the point estimate of the population variance?
   
   
2. Provide a 90% confidence interval estimate of the population variance (to 1 decimal).
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3. Provide a 90% confidence interval estimate of the population standard deviation (to 1 decimal).
   ( , )

Answer 1

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