This is a data set consisting of 10 measurements of 4 variables. The story: A textile shop manager is studying the sales of ``classic blue" pullovers over 10 periods. He uses three different marketing methods and hopes to understand his sales as a fit of these variables using statistics. The variables measured are
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Numbers of sold pullovers, |
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Price (in EUR), |
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Advertisement costs in local newspapers (in EUR), |
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Presence of a sales assistant (in hours per period). |
Sales | Price | Advert. | Ass. Hours | |
1 | 230 | 125 | 200 | 109 |
2 | 181 | 99 | 55 | 107 |
3 | 165 | 97 | 105 | 98 |
4 | 150 | 115 | 85 | 71 |
5 | 97 | 120 | 0 | 82 |
6 | 192 | 100 | 150 | 103 |
7 | 181 | 80 | 85 | 111 |
8 | 189 | 90 | 120 | 93 |
9 | 172 | 95 | 110 | 86 |
10 | 170 | 125 | 130 | 78 |