Which distribution to use to find confidence intervals

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Indicate which distribution to use in order to find confidence intervals for the unknown population mean from a random sample taken from the population in the following cases: (a) n = 36 and s = 10, (b) n = 20 and s = 10 and the population is normally distributed, and (c) n = 20 and s = 10 and the population is not normally distributed.

Reference no: EM13891527

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