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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 an 8% allowance factor.
| Observations (times in seconds) | |||||
| Element | Performance Rating | 1 | 2 | 3 | 4 |
| 1 | 105% | 110.2 | 110.8 | 112.3 | 108.7 |
| 2 | 90% | 114.7 | 115.7 | 114.8 | 114.2 |
| 3 | 115% | 109.2 | 109.3 | 109.2 | 108.9 |
Answer
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