When We Test for Differences Between the Means of Two

question 14

True/False

When we test for differences between the means of two independent populations, we can only use a two-tailed test.

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Definitions:

Probability

A mathematical measurement of the likelihood of an event occurring, expressed as a number between 0 and 1.

Level of Significance

The criterion used for rejecting the null hypothesis; often denoted by alpha.

Type II Error

The failure to reject a false null hypothesis, also known as a "false negative."

Null Hypothesis

A statement or hypothesis in statistical inference that implies no effect or no difference, and it serves as the default or starting assumption for hypothesis testing.