A recent survey of 100 unemployed male executives showed that it took an average of 26 weeks for them to find another position. And the population is a normal population. The standard deviation of the population was 6 weeks. Construct a 95 percent confidence interval for the population mean. zα/2=1.96 (total 10 points)
Added by Aitor M.
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96 (from the standard normal distribution table) Show more…
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