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Costco sells paperback books in their retail stores and wanted to examine the relationship between price...

Costco sells paperback books in their retail stores and wanted to examine the relationship between price and demand. The price of a particular novel was adjusted each week and the weekly sales were recorded in the table below.

Sales Price
3 $12
4 $11
6 $10
10 $9
8 $8
10 $7

Management would like to use simple regression analysis to estimate weekly demand for this novel using the price of the novel. The 95% confidence interval that estimates the average weekly sales for a price of $9 is ________.

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milcah answered 1 year ago
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