CPMP, again. During the study described in Exercise 7, students in both CPMP and traditional classes took another Algebra test that did not allow them to use calculators. The table below shows the results. Are the mean scores of the two groups significantly different?

a) Write an appropriate hypothesis.

b) Do you think the assumptions for inference are satisfied? Explain.

c) Here is computer output for this hypothesis test. Explain what the P-value means in this context.

2-Sample t-Test of m1 2 m2 0 t-Statistic 5 26.451 w/574.8761 df P , 0.0001

d) State a conclusion about the CPMP program.