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Question
When the population is normally distributed, population standard deviation 
is unknown, and the sample size is n = 15, the confidence interval for the population mean 
is based on
A. the z (normal) distribution.
B. the t distribution.
C. the binomial distribution.
D. the Poisson distribution.
E. None of the other choices is correct.
Answer
This answer is hidden. It contains 2 characters.
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