In a statistical test of hypotheses, we say the data are statistically significant at level $\alpha$ if
A) $\alpha$ = 0.05.
B) $\alpha$ is small.
C) the P-value is less than $\alpha$.
D) the P-value is larger than $\alpha$.

Question

Quizplus · Accepted Answer

Statistical significance refers to the likelihood that a result or relationship is not due to chance. The level of statistical significance is determined by the alpha level, denoted by F1F1F1S1F1F1F10. A typical alpha level used in research is 0.05. Therefore, when the P-value is less than the alpha level (F1F1F1S1F1F1F10), we reject the null hypothesis and conclude that the result is statistically significant. Therefore, choice C is the best choice.

In a Statistical Test of Hypotheses, We Say the Data α\alphaα

In a Statistical Test of Hypotheses, We Say the Data $\alpha$