SOLUTION: Could you please help me to solve this question Must show work A sample of 100 elements produced a mean of 84 and a standard deviation of 8. Find the 99% confidence interval

Question 456931: Could you please help me to solve this question
Must show work
A sample of 100 elements produced a mean of 84 and a standard deviation of 8. Find the 99% confidence interval for the population mean. Assume the population is normally distributed.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
A sample of 100 elements produced a mean of 84 and a standard deviation of 8. Find the 99% confidence interval for the population mean. Assume the population is normally distributed.
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sample mean = 84
Margin of Error = ME = 2.5758*8/sqrt(100) = 2.0607
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99% CI: 84-2.0607 < u < 84+2.0607
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99% CI: 81.94 < u < 86.06
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Cheers,
Stan H.
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