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 equal to 1.
D) The samples are selected at random from the populations.
E) The population variances are equal and the population variances are equal to 1.
Correct Answer:

Verified
Correct Answer:
Verified
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