Question

Answer the following questions using the data from Problem 14.50:
a. Calculate the coefficient of determination.
b. Using α = 0.05, test the significance of the population coefficient of determination.
c. Construct a 90% confidence interval for the average customer rating from customers who are on hold for 5 minutes.
d. Construct a 90% prediction interval for the customer rating from a customer who is on hold for 5 minutes.
In Problem


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  • CreatedJuly 29, 2015
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