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 (5 thousands) last month for each client sampled Number of Contacts, Number of Contacts Sales (5 thousands) thousands), y 14 24 14 28 12 20 16 46 23 48 50 55 5e 90 85 120 110 se Click here for the Excel Data File o. Determine the regression equation. (Negative amounts should be indicated by a minus sign. Do not round intermediate calculations. Round final answers to 2 decimal places.) 2- 2 (y-Y - 37.10 (x - ) (y-7) 24 14 - 19.40 376.36 1,376.41 719.74 12 457.96 14 2218.41 -21.4 -47.1 1007.94 28 20 -33.10 1095.61 -13.4 179.56 443.54 - 17.40 16 30 302.76 541.14 -31.1 967.21 > 80 18.90 158.76 46 12.6 357.21 238.14 30 31.10 108.16 23 -10.4 323.44 967.21 14.60 48 90 835.21 28.9 213.16 421.94 16.60 571.21 50 85 23.9 275.56 396.74 120 21.60 58.90 55 466.56 3,469.21 1,272.24 120 21.60 58.90 55 466.56 3,469.21 1,272.24 275.56 2391.21 811.74 50 110.0 16.6 48.9 334 611 2814.40 14248.90 6176.60 - 12.1996 Y - 12.1996 sx = - 12.1996 Sy - 12.1996 0.9754 Answer is complete and correct. 10 2.19 Answer is not complete. (122) 2.19 X b. Determine the estimated sales if 40 contacts are made (Do not round intermediate calculations. Round final answer to 2 decimal places.) The estimated sales