Assume that a sample is used to estimate a population mean μμ. Find the 99.5% confidence interval for a sample of size 53 with a mean of 68.8 and a standard deviation of 6.6. Enter your answer as an open-interval (i.e., parentheses) 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 99.5% confidence interval for a sample of size 53 with a mean of 68.8 and a standard deviation of 6.6. Enter your answer as an open-interval (i.e., parentheses) 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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