PCWorld rated four component characteristics for 10 ultraportable laptop computers:features; 1. performance; design; and price. Each characteristic was rated using a 0-100 point scale. An overall rating, referred to as the PCW World Rating, was then developed for each laptop. The following table shows the performance rating, features rating, and the PCw World Rating for the 10 laptop computers (PC World website, February 5, 2009). TIT Model Performance Features PCW Rating Thinkpad X200 VGN-Z598U 77 97 83 87 85 80 83 82 81 U6V Elitebook 2530P 360 77 64 56 55 75 80 76 81 78 78 78 77 Thinkpad X300 Ideapad U110 Micro Express JFT2500 Toughbook W7 HP Voodoo Envy 133 76 46 54 73 79 68 75 73 72 Determine the estimated regression equation that can be used to predict the PCW World Rating a. using the performance rating as the independent variable. b. b. Determine the estimated regression equation that can be used to predict the PCW World Rating using both the performance rating and the features rating. c. Predict the PCW World Rating for a laptop computerthat has a performance rating of 80 and C. afeatures rating of 70. PCWorld rated four component characteristics for 10 ultraportable laptop computers:features; 1. performance; design; and price. Each characteristic was rated using a 0-100 point scale. An overall rating, referred to as the PCW World Rating, was then developed for each laptop. The following table shows the performance rating, features rating, and the PCw World Rating for the 10 laptop computers (PC World website, February 5, 2009). TIT Model Performance Features PCW Rating Thinkpad X200 VGN-Z598U 77 97 83 87 85 80 83 82 81 U6V Elitebook 2530P 360 77 64 56 55 75 80 76 81 78 78 78 77 Thinkpad X300 Ideapad U110 Micro Express JFT2500 Toughbook W7 HP Voodoo Envy 133 76 46 54 73 79 68 75 73 72 Determine the estimated regression equation that can be used to predict the PCW World Rating a. using the performance rating as the independent variable. b. b. Determine the estimated regression equation that can be used to predict the PCW World Rating using both the performance rating and the features rating. c. Predict the PCW World Rating for a laptop computerthat has a performance rating of 80 and C. afeatures rating of 70