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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=30.3 . You
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately=30.3
. You would like to be 94% confident that your esimate is within 0.2 of the true population mean. How large of a sample size is required?
Do not round mid-calculation. However, use acritical z value accurate to two (2) decimal places
n = ...............
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