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Journal of Korean Society for Quality Management 1995;23(1): 29-. |
| Optimum Design of Accelerated Degradation Tests for Lognormal Distribution |
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| ABSTRACT |
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This paper considers the problem of optimally designing accelerated degradation tests in which the performance value of a specimen is measured only at one of three test conditions for a given exposure time. For the product having lognormally distributed performance, the optimum plan-low stress level and sample proportion allocated to each test condition - is obtained, which minimize the asymptotic variance of maximum likelihood estimator of a stated quantile at design stress. An illustrative example for the optimum plan is given. |
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