When conducting hypothesis tests for two sample means, the test statistic is
A) alpha
B) the difference in sample means
C) the degrees of freedom
D) the difference in the population means

Question

Quizplus · Accepted Answer

The test statistic for hypothesis tests for two sample means is the difference in sample means, which is used to calculate the p-value and ultimately determine if there is a significant difference between the two populations. Alpha is the significance level chosen by the researcher, degrees of freedom are used in the calculation of the test statistic but are not the test statistic itself, and the difference in population means is unknown and what the researcher is attempting to determine.

When Conducting Hypothesis Tests for Two Sample Means, the Test