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Based on a careful work study in the Hofstetter? Corp., the results shown in the following table have been? observed:

Based on a careful work study in the Hofstetter Corp., the results shown in the following table have been observed: Performance Rating 115% 110% 85 % 80 % Observation (minutes per cycle) 2 3 34 36* Element 4 39 12 42 Prepare daily reports Photocopy results Label and package reports Distribute reports 35 12 2 15 2 4 17 45A Photocopying macnine broken, included as delay in the allowance factor Power outage; included as delay in the allowance factor The allowance factor for this type of work is given to be 18%. (Round all intermediate calculations to two decimal places before proceeding with further calculations.)

a) The normal time for the "prepare daily reports" operation = ___ minutes (round your response to two decimal places).

The normal time for the "photocopy results" operation = ___ minutes (round your response to two decimal places).

The normal time for the "label and package reports" operation = ___ minutes (round your response to two decimal places).

The normal time for the "distribute reports" operation = ___ minutes (round your response to two decimal places).

The normal time for the overall process = ___ minutes (round your response to two decimal places).

B) the standard time for this process = ___ minutes

c) the number of observations that are required for a 95% confidence level within a 5% accuracy = __

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