Parametric Binomial Reliability Demonstration Test

From ReliaWiki
Revision as of 16:25, 28 September 2015 by Kate Racaza (talk | contribs)
(diff) ← Older revision | Latest revision (diff) | Newer revision → (diff)
Jump to navigation Jump to search
Weibull Reference Examples Banner.png


New format available! This reference is now available in a new format that offers faster page load, improved display for calculations and images and more targeted search.

As of January 2024, this Reliawiki page will not continue to be updated. Please update all links and bookmarks to the latest references at Weibull examples and Weibull reference examples.




Parametric Binomial Reliability Demonstration Test

This example validates the results for a parametric binomial test design in Weibull++.


Reference Case

The data is from Example 14.2 on page 361 in the book Practical Reliability Engineering by O’Connor and Kleyner, Wiley, 2012.


Data

To demonstrate a reliability of 97% at 1,000 hours with 50% confidence, 15 samples are tested for a zero failure test. How many hours should these samples be tested? The failure times are assumed to follow a Weibull distribution with beta = 2.


Result

The book shows that the units should be tested for 1,232 hours.


Results in Weibull++

The result in Webull++ is 1231.708111 hours, as shown next.

Param RDT.png