A statistically significant difference means:
A)there is practical significance
B)the differences would remain in a large number of trials if we repeated the survey over many times
C)the p values are very large
D)the z values are very small
E)the x values are average

Question

Quizplus · Accepted Answer

A statistically significant difference means that the observed difference between groups is unlikely to have occurred by chance. In other words, if the survey was repeated, the same difference would be expected to occur repeatedly. This is reflected in a small p-value, typically less than 0.05, indicating that the probability of observing such a difference by chance is less than 5%. Practical significance, on the other hand, refers to whether the observed difference is meaningful or important in real-world terms, and is a separate consideration from statistical significance. Z-values and x-values are not indicative of statistical significance.

A Statistically Significant Difference Means