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 is and let be the population mean number of points improved. To determine whether the program is effective, a test is made of the hypothesesversus .

Using technology, compute the P-value.

x = 9

alpha = 42

Ho = means = 0 versus H1 : m > 0

Question 14 options:

0.019996526

0.079986104

1.405165398

0.039993052