SOLUTION: random sample of 42 graduates revealed worked 5.5 yrs the sample standard deviation was 1.1 yrs Using 99% degree of confidence what is the confidence interval for the population me
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Question 444432: random sample of 42 graduates revealed worked 5.5 yrs the sample standard deviation was 1.1 yrs Using 99% degree of confidence what is the confidence interval for the population mean Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! A random sample of 42 graduates revealed worked 5.5 yrs
the sample standard deviation was 1.1 yrs
Using 99% degree of confidence, what is the confidence interval for the population mean.
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x-bar = 5.5
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ME = zs/sqrt(n) = 2.5758*1.1/sqrt(42) = 0.4372
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99% CI: 5.5-0.4372 < u < 5.5+0.4372
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Cheers,
Stan H.
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