dolution

Compatibility with the 3G network, Wi-Fi and a touch screen are other recent features of mobile phones. The previous table also contains data on 3G compatibility and whether the phone has Wi-Fi and touch screen (a ‘1’ indicates the phone has 3G compatibility, Wi-Fi, and touch screen, respectively and a ‘0’ that is does not). Develop another multiple regression model using the four explanatory variables (battery standby time, music player score, camera resolution, and weight) and the three dummy variables 3G, Wi-Fi, and touch screen. Summarize the strength of your model (including the dummy variables) and any new variables generated by recoding. What advice would you give to mobile phone manufacturers with regard to the development, release and marketing of new mobile phones?