B.Estimate the regression equation of on the explanatory variables.

C.Check for consistency in the relationship between quantity demand and the three explanatory variables as postulated in demand theory by indicating the change in the quantity demanded of the commodity for each unit change in the explanatory variables.

D.Find and interpret the adjusted and the unadjusted coefficient of determination.

E.Test at the 5% level for the overall statistical significance of the regression. Interpret the result.

F.Test at the 5% level for the statistical significance of the slope parameters. Interpret the result.