The average weekly earnings of the plumbers in a city is, Applied Statistics

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The average weekly earnings of the plumbers in a city is

The average weekly earnings of the plumbers in a city is (u=$750) with a standard deviation of (SD=$40). Assume that we select a random sample of [n=65 plumber], what is the proability that the sample mean [x bar] will be greater than $740 or greater than $755? A. 0.0228 B. 0.1587 C. 0.3413 D. 0.4772 E. None

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Applied Statistics: The average weekly earnings of the plumbers in a city is

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