The results of a time study to perform a quality control test are shown in the following table. On the basis of these observations, determine the normal and standard time for the test, assuming a 23% allowance factor.

a Disregard-employee is smoking a cigarette (included in personaltime).

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Performace Observations (minutes) Rating (%) 1 2 3 4 5 1.5 1.8 2.0 .7 1.5 6 4 7 3.7 .5 5 4 6 4 4 6 8 .7 6 7 Task Element 97 105 86 90