Consumer Reports provided extensive testing and ratings for more than 100 HDTVs. An overall score, based primarily on picture quality, was developed for each model. In general, a higher overall score indicates better performance. The following data show the price and overall score for the ten 42-inch plasma televisions (Consumer Report data slightly changed here): Brand Price Score Dell 2800 60 Hisense 2800 55 Hitachi 2700 45 JVC 3500 50 LG 3300 55 Maxent 2000 38 Panasonic4000 67 Phillips 3000 56 Proview 2500 32 Samsung 3000 40
A) Use the above data to develop an estimated regression equation.
B) Compute the Coefficient of Determination and the correlation coefficient and show their relation.
C) Interpret the explanatory power of the model.
D) Estimate the overall score for a 42-inch plasma television with a price of $3400.