following data represent a company’s yearly sales volume and its advertising
The following data represent a company’s yearly sales volume and its advertising expenditure over a period of 5 years.
(Y) (X)
Sales in Millions Advertising
Of Dollars in ($10,000)
15 32
16 33
18 35
17 34
16 36
- Compute the coefficient of determination for the estimated regression equation you got in the previous in-class problem.
- Interpret the meaning of the value of coefficient of determination that you found in (1). Be very specific.
- Perform a t test and determine whether or not X and Y are related. Let =0.05.
- Perform an F test and determine whether or not X and Y are related. Let =0.05.
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