You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=52.4σ=52.4. You would like to be 95% confident...

You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately σ=52.4σ=52.4. You would like to be 95% confident that your estimate is within 1 of the true population mean.How large of a sample size is required?



[Do not round mid-calculation. However,use a critical value rounded to three decimal places — this is important for the system to check answers correctly.]