Question: More sales and profits. Consider again the relationship between the sales and profits of Fortune 500 companies that you analyzed in Exercise 30. a) Find

More sales and profits. Consider again the relationship between the sales and profits of Fortune 500 companies that you analyzed in Exercise 30.

a) Find a 95% confidence interval for the slope of the regression line. Interpret your interval in context.

b) Last year the drug manufacturer Eli Lilly, Inc., reported gross sales of $9 billion (that s $9,000 million).

Create a 95% prediction interval for the company s profits, and interpret your interval in context.

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