[Solution Library] (a) Estimate by hand calculation the regression equation of the firm's sales revenue (Y) on its quality control expenditure (call it Z) for the
Question: (a) Estimate by hand calculation the regression equation of the firm's sales revenue (Y) on its quality control expenditure (call it Z) for the data given in Table 4-6.
(b) Plot the estimated regression line on a graph that also shows the data points and the errors.
(c) What would be the sales revenue of the firm when the firm's expenditure on quality control is $2 million per year? $9 million per year? Why would you expect these results to be greatly biased?
Deliverable: Word Document 
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