# Difference between revisions of "Competing Failure Modes"

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Kate Racaza (talk | contribs) |
Kate Racaza (talk | contribs) |
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− | The data is from | + | The data set is from Table 15.1 on page 383 in the book ''Statistical Methods for Reliability Data'' by Dr. Meeker and Dr. Escobar, John Wiley & Sons, 1998. |

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− | In the book, | + | In the book, parameters <math>\mu\,\!</math> and <math>\sigma\,\!</math> are used for the Weibull distribution. They are defined by <math>\mu = ln(\eta)\,\!</math> and <math>\sigma = \frac{1}{\beta}\,\!</math>. The results are: |

* For failure mode s, the log-likelihood value is -101.36. | * For failure mode s, the log-likelihood value is -101.36. | ||

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− | * The ML estimates and the variance covariance matrix for each failure mode | + | * The following picture shows the ML estimates and the variance covariance matrix for each failure mode. |

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− | * The 95% confidence intervals for the parameters of each failure mode | + | * The following picture shows the 95% confidence intervals for the parameters of each failure mode. |