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If the regression line equation (model equation) is Y 3*X + 7, then what is the

ID: 3217644 • Letter: I

Question

If the regression line equation (model equation) is Y 3*X + 7, then what is the model prediction for Y if X = 4? If the regression line equation (model equation) is Y = -X + 3, then what is the model prediction for Y if X = 3? If the regression line equation (model equation) is Y = 2*X - 5, then what is the model prediction for Y if X = 1? Suppose you study GPA as a function of motivation (levels 1-10). Suppose you found that the regression line equation (model equation) for your data is GPA = 0.11*MOTIVATION + 2.18. What is the model prediction for GPA if MOTIVATION = 2? Suppose you study GPA as a function of motivation (levels 1-10). Suppose you found that the regression line equation (model equation) for your data is GPA = 0.11'MOTIVATION + 2.18. What is highest GPA that this model can predict? (MOTIVATION = 10) Suppose you study GPA as a function of motivation (levels 1-10). Suppose you found that the regression line equation (model equation) for your data is GPA - 0.11'MOTIVATION + 2.18. What is the model prediction for GPA if MOTIVATION = 0?

Explanation / Answer

2)Y=3*4+7=19

3)Y=-3+3=0

4)Y=2*1-5=-3

5)GPA=0.11*2+2.18=2.40

6)=0.11*10+2.18=3.28

7)=2.18