Question

Because of staffing decisions, managers of the Gibson-Marimont Hotel are interested in the variability in the...

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).
    ( , )

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Answer #1

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