If You Wish to Test Whether Two Population Means Are

question 4

Multiple Choice

If you wish to test whether two population means are equal using a two-sample t test with a pooled estimate of the common variance, which of the following assumptions is NOT true?

• A) The population variances should be equal or nearly equal.
• B) The two samples must be independent of each other.
• C) The two samples sizes are small and the samples must be randomly selected from the populations.
• D) The populations from which the samples are drawn must be t distributed.

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Definitions:

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