# Question: Consider the following data for two variables x and y a

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.

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.

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