Essay
Average Telephone Time on Hold Narrative
A customer service representative was interested in comparing the average time (in minutes) customers are placed on hold when calling Gaz Metropolitain and Hydro-Quebec, both in Quebec. The representative obtained two independent random samples and calculated the following summary information:
Assume the distributions of time a customer is on hold are approximately normal.
-Refer to Average Telephone Time on Hold Narrative. Use
= 0.10 to test the hypotheses that the two population variances are equal.
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The hypotheses to be tested are
vs.
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