α refers to ______.

A) the probability of accepting the null hypothesis
B) an example of a population parameter
C) the critical value of a statistic
D) the probability of a statistic needed to reject the null hypothesis

Alpha (α)

Alpha (α) represents the level of significance in hypothesis testing, defining the threshold for rejecting the null hypothesis.

Critical Value

A critical value is a point on the distribution that represents a threshold above which significant results are considered to occur.