Question: 2. Consider the following data for two variables, x and y. x 9 32 18 15 26 y 10 20 21 16 22 a. Develop

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

x 9 32 18 15 26 y 10 20 21 16 22

a. Develop an estimated regression equation for the data of the form yˆ = b0 + b1x.

Comment on the adequacy of this equation for predicting y.

b. Develop an estimated regression equation for the data of the form yˆ = 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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