The Following Data Have Been Collected for a Simple Linear

Multiple Choice

The following data have been collected for a simple linear regression analysis relating sales (y) to price (x) : In applying the least squares criterion, the slope (b) and the intercept (a) for the best-fitting line are b = -12 and a = 162.Produce the 99% confidence interval estimate of the population slope, β.Report the upper bound for your interval.

A) -16.7
B) 40.5
C) 21.4
D) -15.2
E) 26.9