Consumption expenditure. A study in the European Journal of Marketing and Economics (Vol. 3, 2020) estimated the final recorded consumption of the Albanian economy using the data over a 10-year period, which included 12 observations. The final consumption expenditure 1y2 was modeled by two independent variables: private consumption expenditure 1x12 and public consumption expenditure 1x22. A first-order model for y was fit to the data with the following results: yn = -.001907 + 1.000272x1 + 1.000793x2, R2 = .6684

a. Give a practical interpretation of each b estimate in the model

b. Give a practical interpretation of the coefficient of determination, R2 .

c. State H0 and Ha for a test of overall model adequacy.

d. Refer to part

c. Compute the value of the test statistic.

e. Refer to parts c and

d. Make the appropriate conclusion at a = .01.