B Mr. James McWhinney, president of Danlel 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 Sales (5 Rains of | Contacta thousanda Contacta thousand 14 90 Sales 23 30 Book 12 20 16 14 20 30 80 50 55 50 85 120 110 rences 2. Determine the standard error of estimate. (Round your answer to 2 decimal places.) Standard tror of b. Determine the coefficient of determination (Round your answer to 2 decimal places.) Coeficient of determination 16 46 30 80 55 120 110 50 a. Determine the standard error of estimate. (Round your answer to 2 decimal places.) Standard error of estimate 5 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