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Suppose That a Time Study Analyst Takes a Sample of Size

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Suppose that a time study analyst takes a sample of size 60 observations.The process mean is 100 seconds,and the standard deviation is 3 seconds.If the max error can be no more than ± 1 second,how confident can the analyst be in the results?


Definitions:

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An Austrian neurologist and the founding father of psychoanalysis, a method for treating psychopathology through dialogue between a patient and a psychoanalyst.

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