Question: ill in the blank. When calculating a confidence interval for the mean using a sample size of 30 or more with a known population standard

ill in the blank. When calculating a confidence interval for the mean using a sample size of 30 or more with a known population standard deviation, the _______ is used. Question content area bottom Part 1 A. Poisson distribution B. normal distribution C. Student's t-distribution D. binomial distribution

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