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.
Correct Answer:
Verified
Correct Answer:
Verified
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