Consider the following data for two variables, x and y.

a. Develop an estimated regression equation for the data of the form y-bar = b0 + b1x.
Comment on the adequacy of this equation for predicting y.
b. Develop an estimated regression equation for the data of the form y-bar b0 + b1x + b2x2. Comment on the adequacy of this equation for predicting y.
c. Predict the value of y when x = 20.

Transcribed Image Text:

x 9 32 18 15 26 У|10 20 21 16 22