Question: Based on a careful work study in the Hofstetter crop, the result shown in the following table have been observed: a) Compute the normal time

Based on a careful work study in the Hofstetter crop, the result shown in the following table have been observed:

a) Compute the normal time for each work element.
b) If the allowance for this type of work is 15% what is the slandered time?
c) How many observation are needed for a 95% confidence level within + 5%accuracy?

OBSERVA TONS (MINUTES)PERFORMANCE ELEMENT |2|3|4|5|RATING(%) 35 40 33 42 39 12 03 13 Label and package reports3355 4 15 18 21 17 45 Prepare daily reports Photocopy results 120 110 90 85 Distibute reports

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