G H I J K A B C E F 1 Creative Confectioners is planning to release a new brownie. 2 A small-scale taste test was conducted to assess consumers' preferences (Y) 3 with regard to Moisture (x1) and Sweetness (x2). 4 Data from the taste test may be found in the table to the right. 5 6 a. Prepare a scatter plot of moisture content vs. Preference. 7 8 b. Prepare a scatter plot of Sweetness vs. Preference. 9 10 c. Estimate the parameters from the following regression function: 11 i = bo + b1X1 +b2x21 + b3X2 +b4x22 Moisture 2.8 3.1 3.9 4.4 4.4 5.2 4.8 5.6 6.3 7.2 7.8 7.9 8.5 8.8 9.4 9.6 Sweetness Preference 4.4 69 4.2 73 5.1 72 5.3 75 6.0 74 6.3 78 7.7 80 8.1 81 82 8.2 85 8.8 88 9.9 85 10.0 84 10.6 81 10.9 76 12.0 74 7.8 = 12 13 What is the estimated regression function? 14 15 d. Using the estimated Regression function in part c, what is the expected preference rating 16 of a brownie recipe with a moisture content of 7.1 and a sweetness rating of 9.4? 17 18