If 100 independent hypothesis tests are conducted using a significance level of 0.10, and if all of the null hypotheses are true, what is the expected number of false positives (type I errors)?
A)0
B)5
C)10
D)There is not enough information to say.

Question

Quizplus · Accepted Answer

With a significance level of 0.10, we expect to see 10% of tests resulting in false positives for true null hypotheses. Therefore, out of 100 tests, we can expect 10 false positives.

If 100 Independent Hypothesis Tests Are Conducted Using a Significance