The analyst in Exercise tried fitting the regression line to each market segment separately and found the

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The analyst in Exercise tried fitting the regression line to each market segment separately and found the following:
The analyst in Exercise tried fitting the regression line to

What does this say about her concern in Exercise 1? Was she justified in worrying that the overall model Jan = $612.07 + 0.403 Dec might not accurately summarize the relationship? Explain briefly.

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Business Statistics

ISBN: 9780321925831

3rd Edition

Authors: Norean Sharpe, Richard Veaux, Paul Velleman

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