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1.) You run a gizmo factory. Over the past year the average output of the factor

ID: 1100472 • Letter: 1

Question

1.) You run a gizmo factory. Over the past year the average output of the factory is 480 gizmos and the standard deviation of that output is 10 units per day. In repeated random samples of size n = 40 days, the expected value of sample mean is:

2.)In the population of employees in your company, 35 percent contribute to the annual United Way campaign. You plan to take a sample of size n = 200 and calculate the sample proportion who contribute to United Way.
The expected value of the sample proportion is:



0.035







0.25







0.35







0.40






Explanation / Answer

the answer is 0.35

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