A sample of 43 students enroll in a program that claims to improve scores on the quantitative reasoning portion of the Graduate Record Examination (GRE). The participants take a mock GRE test before the program begins and again at the end to measure their improvement. The mean number of points improved was.Assume the standard deviation isand letbe the population mean number of points improved. To determine whether the program is effective, a test is made of the hypothesesversus. Using technology, compute theP-value.