Determining percent confidence interval for population mean

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Reference no: EM1316710

Q1) State meat inspector in Iowa has been given assignment of evaluating mean net weight of packages of ground chuck labelled "3 pounds." Of course, he recognizes that weights can't be precisely 3 pounds. Sample of 36 packages discloses mean weight to be 3.01 pounds, with the standard deviation of 0.03 pounds.

a) Determine the estimated population mean?

b) Find out a 95 percent confidence interval for population mean

Q2) Recent survey of 50 executives who were laid off from their earlier position disclosed it took a mean of 26 weeks for them to determine another position. Standard deviation of sample was 6.2 weeks. Create a 95 percent confidence interval for population mean. Is it sensible that population mean is 28 weeks? give explanation for your answer.

Reference no: EM1316710

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