Assume a study indicates that attending an SAT preparation class improved average SAT scores by 200 points. If the null hypothesis is true and the p-value for the 200 point SAT score improvement is 0.015, then there is a ________ chance of improving your SAT score by 200 points.
A) 0.3%
B) 1.5%
C) 3%
D) 15%

Question

Quizplus · Accepted Answer

The p-value of 0.015 indicates there is a 1.5% chance of observing a 200 point improvement in SAT scores (or more extreme) due to random chance if the null hypothesis (no real effect) is true.

Assume a Study Indicates That Attending an SAT Preparation Class