In the two sample case,the null hypothesis is always about the difference in the
A)populations.
B)samples.
C)standard errors.
D)all of these

Question

Quizplus · Accepted Answer

The null hypothesis in a two sample case always involves a statement about the difference between populations. This could include testing whether the means or proportions of two populations are equal or different, for example. The null hypothesis is not typically focused on differences between samples, as samples are taken from populations and are used to make inferences about population parameters. Standard errors are a measure of the uncertainty or precision of sample statistics, and are not directly related to the null hypothesis.

In the Two Sample Case,the Null Hypothesis Is Always About