The batting instructor of the Minnesota Twins is interested in the relationship between number of hours of batting practice and batting average. He collects the following data on 8 players:

Use the MINITAB program to answer the following:

(a) Draw a scatter diagram for these data.

(b) Compute the regression parameters α and β.

(c) Compute the standard error of

b, and use a t-test to test the significance of the slope of the regression.

(d) Construct a 95 % confidence interval for b.

Transcribed Image Text:

Hours of batting practice per week 5 8 9 10 11 9 7 6 Batting Average 0.265 0.277 0.254 0.320 0.301 0.260 0.230 0.272