Homework: Lab 5

e Homework: Lab 5 Question 6, 13.4.21 Part 3 of 4 HW Score: 65.19%, 7.17 of 11 points Points: 0.6 of 1 Save A corporation has asked you to prepare some multiple regression equations to estimate the effect of variables on fuel economy The data for this study are shown below, and the dependent variable is miles per gallom Complete parts a and b. Miles Horsepower Weight 43 2 1995 366 69 1890 32 5 51 1995 39 5 71 2095 368 61 1890 198 109 3370 196 143 3765 20M 138 3575 198 104 3175 206 95 2720 be defined as a. Prepare a regression equation that uses vehicle horsepower and vehicle weight as independent variables. Let Xl weight y (59.9185 0.024 -0.0126 (Round to four decimal places as needed) Interpret the coefficients For a fixed weight a I-unit increase in horsepower leads to an expected increase of approximately b. Prepare a second biased regression with vehicle weight not included (Round to four decimal places as needed) be defined as horsepower and x2 0.024 miles per gallon