Question: 40. Data for two variables, x and y, follow. xi 22 24 26 28 40 yi 12 21 31 35 70 a. Develop the estimated

40. Data for two variables, x and y, follow.

xi 22 24 26 28 40 yi 12 21 31 35 70

a. Develop the estimated regression equation for these data.

b. Compute the studentized deleted residuals for these data. At the .05 level of significance, can any of these observations be classified as an outlier? Explain.

c. Compute the leverage values for these data. Do there appear to be any influential observations in these data? Explain.

d. Compute Cook’s distance measure for these data. Are any observations influential?

Explain.

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