When the probability of a Type I error is .05 or less,we say that we have observed _____.
A)a Type II error
B)statistical significance
C)the alternative hypothesis
D)all of the above

Question

Quizplus · Accepted Answer

When we observe a probability of a Type I error of .05 or less, we say that we have achieved statistical significance. Therefore, the correct answer is B. The choice A is incorrect because a Type II error is when we fail to reject a false null hypothesis. The choice C is incorrect because alternative hypothesis refers to the hypothesis that we are trying to prove through the test. The choice D is incorrect because it includes all the options which is not appropriate in this case.

When the Probability of a Type I Error Is