Question

Assume that the classes are not successful. Is it possible to make a Type II error? Explain.

Answer 1

If we assume that the classes are not successful, then it is obvious that the null hypothesis is true because the alternate hypothesis is not having sufficient evidence to conclude that the classes are successful.

We know that type II error is failure to reject the false null hypothesis, but in this case, our null hypothesis is true. This means we can not make type II error when the null hypothesis is true or not rejected.

To make a type II error, we need to have sufficient evidence to support the alternate hypothesis, then only we can make type II error by not rejecting the false null hypothesis.

So, we can not make type II error if we assume that the classes are not successful