Practical application scenario

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Practical Application Scenario 2 To complete this scenario, use the Sample Size Estimator file provided in the Resources. 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 for the new German coffee brewer. The margin of error should be no bigger than .3. 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.

Reference no: EM13259407

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