(Steps Shown) Sales. Insurance. Dorothy Kelly sells life insurance for the Prudence insurance company, she sells insurance by making visits to her clients’
Question: Sales. Insurance. Dorothy Kelly sells life insurance for the Prudence insurance company, she sells insurance by making visits to her clients’ homes, Dorothy believes that the number of sales should depend, to some degree, on the number visits made. For the past several years, she has kept careful records of the number of visits (x) she made each week and the number of people (y) who bought insurance that week. For a random sample of 15 such weeks, the x and y values follow:
| x | y |
| 11 | 3 |
| 19 | 11 |
| 16 | 8 |
| 13 | 5 |
| 28 | 8 |
| 5 | 2 |
| 20 | 5 |
| 14 | 6 |
| 22 | 8 |
| 7 | 3 |
| 15 | 5 |
| 29 | 10 |
| 8 | 6 |
| 25 | 10 |
| 16 | 7 |
\(\sum{x}\) = 248; \(\sum{y}\) = 97; \(\sum{{{x}^{2}}}\) = 4856; \(\sum{{{y}^{2}}}\) = 731, \(\sum{xy}\) = 1825
(d) During a week in which Dorothy makes 18 visits, how many people do you predict will buy insurance from her?
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