Interpreting parameters

The parameters of the model tell us about the desirability of the features of the alternatives. For instance, the parameter for convertyes tells us how much people prefer a convertible roof over the base level, which is convertno. If the parameter for convertyes is positive, then people prefer cars with a convertible roof, on average. If it is negative, they prefer cars without a convertible roof.

Use summary() to view the model parameters for the m1 model object. Then interpret the parameter for convertyes to determine if convertibles are more or less desirable than non-convertibles.