Question: 39. The following data represent the relation between the number of cans damaged in a boxcar shipment of cans and the speed of the boxcar

39. The following data represent the relation between the number of cans damaged in a boxcar shipment of cans and the speed of the boxcar at impact.

Speed Number of Cans Damaged 3 54 3 62 3 65 5 94 5 122 5 84 6 142 7 139 7 184 8 254

a. Analyze as a simple linear regression model.

b. Plot the standardized residuals.

c. Do the results of part

(b) indicate any flaw in the model?

d. If the answer to part

(c) is yes, suggest a better model and estimate all resulting parameters .

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