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In experiment on human reaction times, you don’t have raw data but you know 95% Confidence...

In experiment on human reaction times, you don’t have raw data but you know
95% Confidence interval: (522 , 1186)
Interviews No: 29

1 Find 99% confidence interval

2 Find α-level for 6-sigma confidence intervals; and 6-sigma confidence interval

3 If you know human reaction time has standard deviation of 130 milliseconds. Find new 99% confidence interval.

Math   Statistics-And-Probability   
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