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University Of Texas At Arlington Operations And Supply Chain Management Assignment Help - The third shift


Question - The third shift at Microsoft's Windows' security unit in Redmond, Washington is considering replacing
its coffee brewing units with new German-made brewers. As the newest member of this elite Microsoft
team, you have been assigned to investigate this proposal. Develop a 99 percent confidence interval
for the average yield (cups per pound) for the new German coffee brewer. The margin of error should
be no bigger than .3 (three-tenths of a cup). Based on experience with the current coffee makers,
your best guess for the population standard deviation, sigma, is 1.2 cups. How big of a sample do you
need? Calculate the estimated sample size needed for the above scenario and communicate your
findings to the business manager.

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