To decide whether observed differences between samples reflect actual differences between populations,you should determine the ________ of the observed differences.
A) mean
B) median
C) standard deviation
D) statistical significance

Question

Quizplus · Accepted Answer

Statistical significance is the best choice for determining whether observed differences between samples reflect actual differences between populations. It provides information about the likelihood that the observed differences could have occurred by chance alone, and helps to determine the strength of the relationship between variables. The other options (mean, median, and standard deviation) are measures of central tendency and variability, but do not provide information about the significance of observed differences.

To Decide Whether Observed Differences Between Samples Reflect Actual Differences