insideLM Home X Home Gradebook Question 1 - Wk 5 - Practice: Wk 5 E X New Tab https://ezto.mheducation.com/ext/map/index.html?_con=con&external_browser=0&launchUrl=https%253A%252F%252Fvle.phoenix.edu%252Fultra%252Fcourses%252F_288506_1%252Fout| # 90% ) ... E Wk 5 - Practice: Wk 5 Exercises [due Day 5] i Saved Help Save & Exit Submit Check my work Refrigerator prices are affected by characteristics such as whether or not the refrigerator is on sale, whether or not it is listed as a Sub- Zero brand, the number of doors (one door or two doors), and the placement of the freezer compartment (top, side, or bottom). The table below shows the regression output from a regression model using the natural log of price as the dependent variable. The model was developed by the Bureau of Labor Statistics. 2 Standard points Variable Coefficient Error t Statistic Intercept 5.3300 . 12956 41.14 Skipped Sale price -0. 0725 -3.25 Sub-Zero brand 1.2095 0.1361 8.89 Total capacity (in cubic feet) 0 . 07782 0. 00457 17.01 Two-door, freezer on bottom 0. 05371 0. 08201 0 . 65 Two-door, side freezer Base Two-door, freezer on top 0. 4246 0. 03518 12.07 Book One door with freezer 0. 6463 0. 1367 -4.73 One door, no freezer -0 . 8515 0. 1241 6. 86 Hint (a) Write the regression model, being careful to exclude the base indicator variable. (Negative amounts should be indicated by a minus sign. Round your answers to 4 decimal places.) In(Price) = SalePrice + Sub-Zero + Capacity + 2DoorFzBot + 2DoorFz Top + 1DoorFz + 1 Door NOFz References (b) Find the p-value for each coefficient, using 312 degrees of freedom. Using an a = .10, which predictor variable(s) are not significant predictors? (Leave no cells blank - be certain to enter "0" wherever required. Round your answers to 4 decimal places.) p-value SalePrice Sub-Zero Capacity 2DoorFzBo 2DoorFz Top 1 DoorFZ 1DoorNoFZ (c) By how much does the natural log of refrigerator price decrease from a two-door, side freezer model to a two-door, top freezer model? (Round your answer to 4 decimal places.) The natural log of the price decreases by (d) Which model demands a higher price: the side freezer or the one door with freezer model? Mc Hill