Construct a 99% confidence interval for the population mean. We assume that the population has a normal distribution. n=12, ar{x} = 27.8, s = 5.2. (23.14, 32.46) (23.15, 32.45) (23.72, 31.88) (23.04, 32.56)
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Calculate the standard deviation of the population, s = 5.2. Show more…
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