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Based on a careful work study in the Tom Nixon Company, the results shown in the following table have been observed: Observati ons ELEMEN (Minutes)...


6. Based on a careful work study in the Tom Nixon Company, the results shown in the following table have been observed:

Compute the normal time for Prepare daily reports element.
Compute the normal time for Photocopy results element. If the allowance for this type of work is 15%, what is the standard time? How many observations are needed for a 95% confidence level within 5% accuracy for Label and package reports with standard deviation of 1.0 minute? How many observations are needed for a 95% confidence level within 5% accuracy for Distribute reports with standard deviation of 2.5 minutes?
6. Based on a careful work study in the Tom Nixon Company, the results shown in the following table have been observed: ELEMEN T Observati ons (Minutes) Performance Rating (%) 1 2 3 4 5 Prepare daily reports 35 40 33 42 39 120 Photocopy results 12 10 36 a 15 13 110 Label and package reports 3 3 5 5 4 90 Distribute reports 15 18 21 17 45 b 85 a Photocopying machine broken; included as delay in the allowance factor. b Power outage: included as delay in the allowance factor Compute the normal time for Prepare daily reports element. Compute the normal time for Photocopy results element. If the allowance for this type of work is 15%, what is the standard time? How many observations are needed for a 95% confidence level within 5% accuracy for Label and package reports with standard deviation of 1.0 minute? How many observations are needed for a 95% confidence level within 5% accuracy for Distribute reports with standard deviation of 2.5 minutes?
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