1. Assume that a sample is used to estimate a population mean μμ. Find the 99.5% confidence interval for a sample of size 942 with a mean of 29.4 and a standard deviation of 17.6. Enter your answer accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).  <μ<

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1. Assume that a sample is used to estimate a population mean μμ. Find the 99.5% confidence interval for a sample of size 942 with a mean of 29.4 and a standard deviation of 17.6. Enter your answer accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).

 <μ<

 

2. Assume that a sample is used to estimate a population mean μμ. Find the 80% confidence interval for a sample of size 864 with a mean of 45.1 and a standard deviation of 16.5. Enter your answer accurate to one decimal place (because the sample statistics are reported accurate to one decimal place).

 <μ<

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