Question: Determine the minimum sample size required when you want to be 90% confident that the sample mean is within one unit of the population mean

Determine the minimum sample size required when you want to be 90% confident that the sample mean is within one unit of the population mean and o = 12.3. Assume the population is normally distributed. . . . A 90% confidence level requires a sample size of (Round up to the nearest whole number as needed.)

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