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 (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.

Assignment Submission

Use your custom textbook and the resources provided in the studies to help you complete this assignment. If you need additional clarification on any of the topics addressed in this assignment, Youtube.com can be a very valuable resource.

Complete the two practical application scenario answers in one Word file (please submit a .doc rather than a .docx file) and copy the Excel output into that document. Highlight your numerical answers for both practical applications scenarios in yellow, and then right after that numerical solution, be sure to summarize your findings in a three- to five-sentence paragraph to the scenario manager. Submit the assignment for grading and instructor feedback. Review the scoring guide prior to submission to ensure you meet all evaluation criteria