value 2.50 points Mr. James McWhinney, president of Daniel-James Financial Services, believes there is a relationship between the number of client contacts and the dollar amount of sales. To document this assertion, 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 month for each client sampled. Number of Contacts, Sales ($ thousands), Number of Contacts, Sales ($ thousands), X Y X 12204 24 23 14 48 28 16 30 55 46 80 8886ដ* Y 30 90 50 85 120 50 110 Click here for the Excel Data File (a) Determine the standard error of estimate. (Round your answer to 2 decimal places.) Standard error of estimate (b) Determine the coefficient of determination. (Round your answer to 2 decimal places.) Coefficient of determination (c) Interpret the coefficient of determination. (Round your answer to the nearest whole number.) percent of the variation in sales can be explained by the variation in the number of contacts. References Type here to search eBook & Resources