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The Following Are Partial Results of a Regression Analysis Involving α\alpha

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The following are partial results of a regression analysis involving sales (Y in millions of dollars), advertising expenditures (X1 in thousands of dollars), and number of salespeople (X2) for a corporation. The regression was performed on a sample of 10 observations.
The following are partial results of a regression analysis involving sales (Y in millions of dollars), advertising expenditures (X<sub>1</sub> in thousands of dollars), and number of salespeople (X<sub>2</sub>) for a corporation. The regression was performed on a sample of 10 observations. a.At \alpha = 0.05, test for the significance of the coefficient of advertising. b.If the company uses $20,000 in advertisement and has 300 salespersons, what are the expected sales? (Give your answer in dollars.)
a.At α\alpha = 0.05, test for the significance of the coefficient of advertising.
b.If the company uses $20,000 in advertisement and has 300 salespersons, what are the expected sales? (Give your answer in dollars.)

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a.t = 3; p-value is between .0...

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