| Number of Minutes |
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| of Radio | Dollar Sales |
| Advertising | |
| SALES) | |
| MINUTES) |
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Week 1 | 2 | $1,400 |
Week 2 | 1 | $ 920 |
Week 3 | 3 | $1,100 |
Week 4 | 5 | $2,265 |
Week 5 | 5 | $2,890 |
Week 6 | 4 | $2,200 |
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BJ’s wants to determine whether there is a linear relationship between the amount of radio advertising and the weekly sales. If a strong relationship exists, BJ’s wants to use the relationship to forecast sales. A graph of the data looks like this:
SALES in Dollars
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3,000 |
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2,000 |
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1,000 |
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0 | 1 | 2 | 3 | 4 | 5 |
| 6 | 7 |
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of Advertising
10: Running Total and Statistics 135
File name : | Print data : 2003/7/11 |