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- You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately a
- You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately a = 40.4. You would like to be 99% confident that your esimate is within 0.1 of the true population mean. How large of a sample size is required? Do not round midcalculation. However, use a critical 2 value rounded to two (2) decimal places. n=CJ Question Help: El Video Check
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