Determine the minimum sample size required when you want to be 99% confident that the sample mean is within one unit of the population mean and o = 12.3. Assume the population is normally distributed....

Extracted text: Determine the minimum sample size required when you want to be 99% confident that the sample mean is within one unit of the population mean and o = 12.3. Assume the population is normally distributed. A 99% confidence level requires a sample size of. (Round up to the nearest whole number as needed.)