SOLUTION: A company recruits personnel for its sales department on the basis of special tests designed to judge the potential of the candidates. The following table gives test scores and the

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Question 280046: A company recruits personnel for its sales department on the basis of special tests designed to judge the potential of the candidates. The following table gives test scores and the mean daily sales for 9 executives.
a. Fit a regression line of Y on X.
b. Prepare a table of predicted values and residuals.
Mean daily Score(Y)
34 39 30 33 36 38 45 41 48
Test Score (X)
59 69 50 56 64 66 77 73 83

Answer by stanbon(57361) About Me  (Show Source):
You can put this solution on YOUR website!
A company recruits personnel for its sales department on the basis of special tests designed to judge the potential of the candidates. The following table gives test scores and the mean daily sales for 9 executives.
a. Fit a regression line of Y on X.
y = 0.548x + 1.85
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b. Prepare a table of predicted values and residuals.
The regression line produces a predicted y-value for each x-value.
The difference, Observed-Predicted, is the residual. You are asked
to find the nine residual values.
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Cheers,
Stan H.
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Mean daily Score(Y)
34 39 30 33 36 38 45 41 48
Test Score (X)
59 69 50 56 64 66 77 73 83