50 Consider the following data for two variables, x and y xi 135 110 130 145 175 160 120 yi 145 100 120 120 130 130 110 a Compute the standardized residuals for these data Do the data include any outliers Explain b Plot the standardized residuals against y Does this plot reveal any outliers c Develop a scatter diagram for these data Does the scatter diagram indicate any outliers in the data In general, what implications does this finding have for simple linear regression

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Question: 50. Consider the following data for two variables, x and y. xi 135 110 130 145 175 160 120 yi 145 100 120 120 130

50. Consider the following data for two variables, x and y.

xi 135 110 130 145 175 160 120 yi 145 100 120 120 130 130 110

a. Compute the standardized residuals for these data. Do the data include any outliers?

Explain.

b. Plot the standardized residuals against yˆ. Does this plot reveal any outliers?

c. Develop a scatter diagram for these data. Does the scatter diagram indicate any outliers in the data? In general, what implications does this finding have for simple linear regression?

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