A large school district is reevaluating its teachers' salaries. They have decided to use regression analysis to predict mean teacher salaries at each elementary school. The researcher would like to examine the significance of a following quadratic model for predicting salary based on years of experience.
Y = β0 + β1X1 + β2X2 + ε where X1 = Yrs Exp and X2 = Yrs Exp2 
(a) What is the adjusted r2?
(b) What is the prediction equation?
Definitions:
Experimental Control
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