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The paired data below consist of the costs of advertising (in thousands of dollars) and the numberof products sold (in thousands): Cost: 9 2 3
The paired data below consist of the costs of advertising (in thousands of dollars) and the numberof products sold (in thousands):
Cost: 9 2 3 4 2 5 9 10 Number 85 52 55 68 67 86 83 73
Assuming a significant linear correlation exists between the above variables, use regression line to predict number of products (in thousands) sold given an advertising cost of $7500.
Select one:
a. 449.19b. 76.72c. 79.52
d. 78.09
e. 421.29
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