In testing the difference between the means of two normally distributed populations using large independent random samples,we can only use a two-sided test.

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Quizplus · Accepted Answer

This statement is false. While a two-sided test is commonly used, it is possible to conduct a one-sided test in certain circumstances. However, it is important to consider the context and reasoning behind choosing a one-sided test, as it may not always be appropriate.

In Testing the Difference Between the Means of Two Normally