Wal-Mart revenue, part 3. Consider the model you fit in Exercise 37 to predict Wal-Marts revenue from

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Wal-Mart revenue, part 3.

Consider the model you fit in Exercise 37 to predict Wal-Mart’s revenue from the Retail Index, CPI, and Personal Consumption index.

a) Plot the residuals against the predicted values and comment on what you see.

b) Identify and remove the four cases corresponding to December revenue and find the regression with December results removed.

c) Does it seem that Wal-Mart’s revenue is closely related to the general state of the economy?

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Business Statistics

ISBN: 9780321716095

2nd Edition

Authors: Norean D. Sharpe, Paul F. Velleman, David Bock, Norean Radke Sharpe

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Question Posted: Sep 19, 2024 02:29 PM

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Wal-Mart revenue, part 3. Consider the model you fit in Exercise 37 to predict Wal-Marts revenue from

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