In order to determine whether or not the sales volume of a company (Y in millions of dollars) is related to advertising expenditures (X1 in millions of dollars) and the number of salespeople (X2), data were gathered for 10 years. Part of the regression results is shown below. 
a. Use the above results and write the regression equation that can be used to predict sales.
b. Estimate the sales volume for an advertising expenditure of 3.5 million dollars and 45 salespeople. Give your answer in dollars.
c. At = 0.05, test to determine if the fitted equation developed in Part a represents a significant relationship between the independent variables and the dependent variable.d. At = 0.05, test to see if 1 is significantly different from zero.
e. Determine the multiple coefficient of determination.
f. Compute the adjusted coefficient of determination.
Definitions:
Good Will
A will without ulterior motive, motivated solely by the intention to do one’s duty.
Selfishness
The act or practice of placing one's own needs or desires above the welfare of others.
Natural Tendency
An innate inclination or predilection towards a particular behavior or action.
Duty-Defined
Describes actions or behaviors dictated by obligations, responsibilities, or moral commitments.
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