A recent survey of 50 executives who were laid off during a recent recession 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 $95 \%$ confidence interval for the population mean. Is it reasonable that the population mean is 28 weeks? Justify your answer.
Added by Kristine O.
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We are given the sample mean $\bar{x} = 26$ weeks, the sample standard deviation $s = 6.2$ weeks, and the sample size $n = 50$. Show more…
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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? Justify your answer.
A recent survey of 50 executives who were laid off during a recent recession 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% confidence interval for the population mean. (Round answers to 2 decimal places.)The confidence interval is between ___ and ___. Is it reasonable that the population mean is 28 weeks?
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A recent survey of 50 executives who were laid off during a recent recession 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% confidence interval for the population mean. (Round answers to 2 decimal places.)The confidence interval is between ___ and ___.
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