In a Time Study, Conducted at a Manufacturing Plant, the Length

Essay

In a time study, conducted at a manufacturing plant, the length of time to complete a specified operation is measured for each on n = 40 workers. The mean and standard deviation are found to be 15.2 and 1.40, respectively.
a. Describe the sample data using the Empirical Rule.
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b. Describe the sample data using Tchebysheff's Theorem.
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