Which of the Following Is NOT a Required Assumption for Constructing

question 46

Multiple Choice

Which of the following is NOT a required assumption for constructing a confidence interval estimate of the difference between two population means when the samples are small?

• A) The populations are normally distributed.
• B) The population variances are equal.
• C) The population variances are both equal to 1.
• D) The samples are selected at random from the populations.

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