question archive The following table shows, for eight vintages of select wine, purchases per buyer (y) and the wine buyer’s rating in a year (x): X 3
The following table shows, for eight vintages of select wine, purchases per buyer (y) and the wine buyer’s rating in a year (x): X 3
Subject:ManagementPrice: Bought3
The following table shows, for eight vintages of select wine, purchases per buyer (y) and the wine buyer’s rating in a year (x): X 3.6 3.3 2.8 2.6 2.7 2.9 2.0 2.6Y 24 21 22 22 18 13 9 6A. Estimate the regression of purchases per buyer on the buyer’s rating.B. Interpret the slope of the estimated regression line.C. Find and interpret the coefficient of determination.D. Find and interpret a 90% confidence interval for the slope of the population regression line.E. Find a 90% confidence interval for expected purchases per buyer for a vintage for which the buyer’s rating is 2.0.
