Answer the following questions using the data from Problem 14.50:
a. Using α = 0.05, test for the significance of the regression slope.
b. Construct a 95% confidence interval for the population slope.
c. What conclusions about customer rating and time on hold can be drawn from these results?
In Problem

Transcribed Image Text:

Minutes Rating Minutes Rating 15 13 18 10 14 16 14 20 14 13 10 0