Question
The following data represent a company's yearly sales volume and its advertising expenditure over a period...
The following data represent a company's yearly sales volume and its advertising expenditure over a period of 8 years.
(Y) Sales in Millions of Dollars (X) Advertising in ($10,000)
15 32
16 33
18 35
17 34
16 36
19 37
19 39
24 42
Develop a 95% confidence interval for predicting the average sales for the years when $400,000 was spent on advertising.
i. Compute the correlation coefficient. alpha=5
urgently need detailed solution please
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