# Question

For the Georgia Student Survey file on the text CD, let y = exercise and x = college GPA.

a. Construct a scatter-plot. Identify an outlier that could influence the regression line. What would you expect its effect to be on the slope and the correlation?

b. Fit the model. Find the standardized residual for that observation. Interpret.

c. Fit the model without the outlying observation. Summarize its impact.

a. Construct a scatter-plot. Identify an outlier that could influence the regression line. What would you expect its effect to be on the slope and the correlation?

b. Fit the model. Find the standardized residual for that observation. Interpret.

c. Fit the model without the outlying observation. Summarize its impact.

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