Question: Please, show work step by step. A methods and measurements analyst needs to develop a time standard for a certain task. In a preliminary study,

Please, show work step by step. A methods and

Please, show work step by step.

A methods and measurements analyst needs to develop a time standard for a certain task. In a preliminary study, he observed one of his workers perform this task five times, with the following results: Observation 2 3 4 5 Time (seconds) 84 76 80 84 76 Assume that the standard deviation of each task time is s = 4 seconds. How many observations should be made if the analyst wants to be 99.74 percent confident that the maximum error in the observed time is e = 2 seconds? 05 Na O 36 49

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