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.

Variable Coefficient Standard Error t Statistic Intercept 5.4841 0. 13081 41.92 Sale price -0.0733 0.0234 -3.13 Sub-Zero brand 1. 1196 0. 1462 7.66 Total capacity (in cubic feet) 0.06956 0. 005351 13.00 Two-door, freezer on bottom 0.04657 0. 08085 0.58 Two-door, side freezer Base Two-door, freezer on top -0. 3432 0. 03596 -9.55 One door with freezer -0.7096 0. 1310 -5.42 One door, no freezer -0. 8820 0. 1491 -5.92