10.9 Assume that the committee in Exercise 10.6 decided that a GPA-score cutoff of 3.00 would be appropriate. In other words, they classed everyone with a GPA of 3.00 or higher as acceptable and those...

10.9 Assume that the committee in Exercise 10.6 decided that a GPA-score cutoff of 3.00 would be appropriate. In other words, they classed everyone with a GPA of 3.00 or higher as acceptable and those with a GPA below 3.00 as unacceptable. They then correlated this with completion of the Ph.D. program. a. Rescore the data in Exercise 10.6 as indicated. b. Run the correlation. c. Test this correlation for significance.