The probability we use to define a statistically significant outcome is equivalent to
A)Type II error.
B)the null hypothesis.
C)level of rejection.
D)alpha.

Question

Quizplus · Accepted Answer

The probability we use to define a statistically significant outcome is called the alpha level, commonly denoted as α. It is the probability of rejecting the null hypothesis when it is in fact true. A commonly used alpha level is 0.05, which means that if the p-value of a test is less than 0.05, we reject the null hypothesis and conclude that there is evidence of a statistically significant effect.

The Probability We Use to Define a Statistically Significant Outcome