Testing Effectiveness of SAT Prep Courses Does it pay to take preparatory courses for standardized tests such as the SAT? Using a 0.05 significance level, test the claim that the Allan Preparation Course has no effect on SAT scores. Use the sign test with the sample data in the accompanying table (based on data from the College Board and

“An Analysis of the Impact of Commercial Test Preparation Courses on SAT Scores,”

by Sesnowitz, Bernhardt, and Knain, American Educational Research Journal, Vol.

19, No. 3).