Based on a careful work study in the Hofstetter Corp., the results shown in the following table have been observed: Performance Observation (minutes per cycle) Element Rating 1 2 3 4 5 Prepare daily reports 125% 34 39 33 41 38 Photocopy results 105% 11 11 37* 14 12 Label and package reports 85% 3 2 6 4 3 Distribute reports 90% 16 19 20 17 44^ Photocopying machine 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 15%. (Round all intermediate calculations to two decimal places before proceeding with further calculations.) a) The normal time for the "prepare daily reports" operation = 46.25 minutes (round your response to two decimal places). The normal time for the "photocopy results" operation = 12.6 minutes (round your response to two decimal places). The normal time for the "label and package reports" operation = 3.06 minutes (round your response to two decimal places). The normal time for the "distribute reports" operation = 16.2 minutes (round your response to two decimal places). The normal time for the overall process = 78.11 minutes (round your response to two decimal places). b) The standard time for this process = 91.89 minutes (round your response to two decimal places). c) The number of observations that are required for a 95% confidence level within 5% accuracy = || (round your response to the immediate higher whole number).