A business analyst was interested in the relationship between a company's sales and its profits. She collected
Question:
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a) Is there a statistically significant association between sales and profits? Test an appropriate hypothesis and state your conclusion in context.
b) Do you think that a company's sales serve as a useful predictor of its profits? Use the values of both R2 and 5 in your explanation.
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a H 0 There is no linear relationship between sales and profit 1 0 H A There is a linear relationshi...View the full answer
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Related Book For 
Stats Data and Models
ISBN: 978-0321986498
4th edition
Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock
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