A sample of 39 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 x=12.Assume the standard deviation is a=40and letbe the population mean number of points improved. To determine whether the program is effective, a test is made of the hypothesesH0 : =0 versusH1: > 0

compute theP-value.

Question 10 options:

0.0076

0.0153

0.0305

1.8735

Compute theP-value.