Question: Assuming data come from a random sample, under which of the following conditions should we not calculate a confidence interval for a population mean? A.

Assuming data come from a random sample, under which of the following conditions should wenotcalculate a confidence interval for a population mean?

A. Population is normally distributed and sample size is 50 individuals.

B. Population distribution is unknown and sample size is 20 individuals.

C. Population is normally distributed and sample size is 20 individuals.

D. Population distribution is unknown and sample size is 50 individuals.

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