32 seconds 8 seconds 200 seconds 48 seconds 40 seconds QUESTION 33 4 points A me

Question

32 seconds 8 seconds 200 seconds 48 seconds 40 seconds QUESTION 33 4 points 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 Time (seconds) 84 76 80 84 76 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 two seconds? Assume that the standard deviation of each task time is four seconds. 25 49 36 QUESTION 34 A method s 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 5

Explanation / Answer

33. How many observations should be made if the analyst wants to be 99.74 confident that the maximum error in the observed time is two seconds? Assume that the standard deviation of each task time is 4 seconds

5

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