Statistics - Confidence Interval
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A recent survey of 50 executives who were laid off from their previous position revealed it took a mean of 26 weeks for them to find another position. The standard deviation of the sample was 6.2 weeks. Construct a 95 percent confidence interval for the population mean. Is it reasonable that the population mean is 28 weeks?
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x-bar = 26, s = 6.2, n = 50
SE = s/sqrt n = 6.2/sqrt 50 = 0.8768
The 95% confidence ...
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