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Question
The data in the following table represent time-study observations on a new operation with three work elements. On the basis of these observations, find the standard time for the process. Assume a 15% allowance factor.
| Observations (times in seconds) | |||||
| Element | Performance Rating | 1 | 2 | 3 | 4 |
| 1 | 120% | 90.3 | 91.5 | 92.4 | 90.2 |
| 2 | 100% | 30.5 | 32.3 | 29.6 | 31.1 |
| 3 | 105% | 130.5 | 128.9 | 132 | 130.5 |
Answer
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