confidence interval
Message posted by Sh (via 12.86.17.118) on December 13, 2001 at 8:47 PM (ET)

Need help with this problem. A manufacturing supervisor timed 6 employees and found that the average time it took them to complete a process was 18 minutes. The standard deviation of the sample was 3 minutes. Find the 99% confidence interval of the true mean.

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Re: confidence interval
Message posted by JG (via 128.8.23.209) on December 14, 2001 at 4:25 AM (ET)