Question

In: Statistics and Probability

The senior vice president for marketing at a Hotel believes that the company’s recent advertising of...

The senior vice president for marketing at a Hotel believes that the company’s recent advertising of the hotel has decreased the average room idle rate. To test the hypothesis, random sample of daily idle rates (in percentages) before the advertising is collected. A similar random sample of daily idle rates is collected after the advertising took place. The data are as follows.

Before (%) 8 17 12 21 19 10 After (%) 6 10 1 11 17 8

Is there evidence that the average room idle rate of the hotel has decreased after the advertising at the 0.01 level of significance.

Solutions

Expert Solution

calculate mean and standard deviation

for before data:

for after data:

so we dont have enough evidence to conclude that the average room idle rate of the hotel has decreased after the advertising at the 0.01 level of significance.


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