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Mr. James McWhinney, president of Daniel-James Financial Services, believes there is a relationship between the number...

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Basic Math

Mr. James McWhinney, president of Daniel-James FinancialServices, believes there is a relationship between the number ofclient contacts and the dollar amount of sales. To document thisassertion, Mr. McWhinney gathered the following sample information.The X column indicates the number of client contacts last month,and the Y column shows the value of sales ($ thousands) last monthfor each client sampled.

Number of Contacts (X)

Sales ($ thousands) (Y)

14

24

12

14

20

28

16

30

46

80

23

30

48

90

50

85

55

120

50

110

  1. Determine the standard error of estimate
  2. Determine the coefficient of determination. Interpret thecoefficient of determination

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