“Identical” Devices Were Made And The Failure Time Was Recorded: Applied physics Homework, UOL, Ireland
| University | University of Limerick (UOL) |
| Subject | Applied physics |
Q. 1 “Identical” devices were made and the failure time was recorded for four of them. The corresponding recorded failure times are reported in the table on the right.
(i) Assuming that the probability of failure is well represented by the Weibull distribution, estimate the slope and characteristic time. Establish the meantime to failure (MTTF) and type of failure scenario relevant to this device.
(ii) On a large device batch, how long will it take for 99% of the device to fail (statistically)?
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