Question: Refer to the data in exercise 31 a Develop an estimated

Refer to the data in exercise 31.
a. Develop an estimated regression equation that can be used to predict Delay by using Industry and Quality.
b. Plot the residuals obtained from the estimated regression equation developed in part (a) as a function of the order in which the data are presented. Does any autocorrelation appear to be present in the data? Explain.
c. At the .05 level of significance, test for any positive autocorrelation in the data.

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