Which of the Following Is NOT a Required Assumption for Constructing

question 37

Multiple Choice

Which of the following is NOT a required assumption for constructing a confidence interval to estimate the difference between two population means when the sample sizes are small (less than 30) ?

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

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