October 2012
Beginner
420 pages
9h 37m
English
book
Industrial Statistics with Minitab
by Pere Grima Cintas, Lluis Marco Almagro, Xavier Tort-Martorell Llabres
Content preview from Industrial Statistics with Minitab
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29.4 Parametric Analysis
The parametric analysis assumes a theoretical model for the data (exponential, Weibull, lognormal, etc.). The identification of the distribution that best fits the data is achieved through Distribution ID Plot, as previously seen.
Stat > Reliability/Survival > Distribution Analysis (Right Censoring) > Parametric Distribution Analysis
This allows the estimation of reliability values, and to draw reliability and risk functions for complete or right censored data assuming a theoretical model for the data.
29.4.1 Graphs
The session window after carrying out a parametric analysis looks as follows:
What is the reliability value after 40 000 hours of functioning?
The Minitab output is:
Thus, the reliability value at 40 000 hours is equal to 0.5766. The reliability value obtained (at 40 000 hours) from a parametric (assuming an exponential model) or nonparametric ...
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