The level of statistical significance
A)is not related to random error.
B)should be 5% or smaller by rule of thumb.
C)is irrelevant to inferential statistics.
D)is the same as standard deviation.

Question

Quizplus · Accepted Answer

The level of statistical significance is the probability of obtaining a result as extreme or more extreme than the observed result, assuming the null hypothesis is true. A common rule of thumb is to set the level of significance at 5% or smaller, meaning there is a 5% or less chance of obtaining the result by chance alone. Therefore, choice B is the best answer.

The Level of Statistical Significance