α refers to ______.

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

Alpha (α)

The threshold of significance in a statistical test; the probability of rejecting the null hypothesis when it is true, often set at 0.05 or 5%.

Population Parameter

A value that represents a characteristic of an entire population, such as its mean or standard deviation.

Statistic

A statistic is a single measure or value that is derived from a sample of data, used to estimate or infer properties of the population from which the sample was drawn.