Using a statistics program, consider again the relationship between the sales and profits of Fortune 500 companies
Question:
Using a statistics program, consider again the relationship between the sales and profits of Fortune 500 companies that you analyzed in Exercise 38.
In exercise
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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 $ 23 billion (that€™s $ 23,000 million). Create a 95% prediction interval for the company€™s profits, and interpret your interval in context.
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a 95 confidence interval b 1 t n2 SE b 1 00925 00075 199 ...View the full answer
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Related Book For 
Business Statistics
ISBN: 9780321925831
3rd Edition
Authors: Norean Sharpe, Richard Veaux, Paul Velleman
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