Assume that a sample is used to estimate a population mean μμ. Find the 99.9% confidence interval for a sample of size 520 with a mean of 61.1 and a standard deviation of 6.1. Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place). Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.

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Assume that a sample is used to estimate a population mean μμ. Find the 99.9% confidence interval for a sample of size 520 with a mean of 61.1 and a standard deviation of 6.1. Enter your answer as a tri-linear inequality accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).

Answer should be obtained without any preliminary rounding. However, the critical value may be rounded to 3 decimal places.
 
 

 

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