1. The value of R² always falls between __________ and __________ inclusive.

   		-1 and +1
   		-0.5 and 1
   		0 and 1
   		1 and infinity

2. A correlation between college entrance exam grades and scholastic achievement was found to be -1.08. On the basis of this, you would tell the university that:

   		The entrance exam is a good predictor of success.
   		They should hire a new statistician.
   		The exam is a poor predictor of success.
   		Students who do best on this exam will make the worst students.

3. Shown below is JMP output for regression analysis for the education and sick day data. The regression equation is:

   

   		SickDays = 7.745 + 0.079*Hours of Ed.
   		SickDays = 7.745 - 0.079*Hours of Ed.
   		Hours of Ed = 7.745 - 0.079 * SkickDays
   		Hours of Ed = 7.745 + 0.079 * SkickDays

Summary of Fit RSquare 0.597803 RSquare Adj 0.575459 Root Mean Square Error 2.455069 Mean of Response 4.75 Observations (or Sum Wgts) 20 Lack Of Fit Analysis of Variance Sum of Source DF Squares Mean Square Model 1 161.25746 161.257 Error 18 108.49254 6.027 C. Total 19 269.75000 Parameter Estimates F Ratio 26.7542 Prob>F <.0001 term intercept hours of ed estimate std errort ratio prob>It 7.7455192 0.797972 9.71 <.0001 summary of fit rsquare adj root mean square error response observations sum wgts lack analysis variance source df squares model c. total parameter estimates f ratio prob>F <.0001 term intercept hours of ed estimate std errort ratio prob>It 7.7455192 0.797972 9.71 <.0001>