In a recent study,researchers concluded that exercise significantly lowered stress levels.What the researchers were unaware of,however,was that several of the participants in the exercise group were also taking anti-anxiety medications.The researchers' conclusion is a(n)_____ error.
A)Type II
B)Type I
C)null hypothesis
D)alternative hypothesis

Question

Quizplus · Accepted Answer

This is a Type I error because the researchers concluded that exercise significantly lowered stress levels when in fact it may have been the anti-anxiety medication that was responsible. This is an error of falsely rejecting the null hypothesis (that exercise does not lower stress levels).

In a Recent Study,researchers Concluded That Exercise Significantly Lowered Stress