“You want to gather data to determine which of two students is a better basketball shooter. You plan to have each student take N shots and then compare their shooting percentages. Roughly how large does N have to be for you to have a good chance of distinguishing a 30% shooter from a 40% shooter?”

Elden Griggs writes: I have been grading a homework problem where the students have come to two different conclusions. The question was: You want to gather data to determine which of two students is a better basketball shooter. You plan … Continue reading → …