Coaching and SAT scores, continued. What we really want to know iswhether coached
Chapter 0, Problem 19.43(choose chapter or problem)
Coaching and SAT scores, continued. What we really want to know iswhether coached students improve more than uncoached students, and whetherany advantage is large enough to be worth paying for. Use the information in theprevious exercise to answer these questions:(a) Is there good evidence that coached students gained more on the averagethan uncoached students?(b) How much more do coached students gain on the average? Give a 99%confidence interval.(c) Based on your work, what is your opinion: do you think coaching courses areworth paying for?
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