A professor claims that the average score on a recent exam w

A professor claims that the average score on a recent exam was 83. Suppose you want to test whether the professor\'s statement is correct. Assume that the test scores are normally distributed. You ask some people in class how they did, and record the following scores: 82, 77, 85, 76, 81, 91, 70, and 82. What are the null and alternative hypotheses?

Solution

Null hypothesis

H0: mu=83

Alternative hypothesis

H1: mu<83