The Weibull Bible

Errata Sheet:
It is difficult to find and correct every typo and mistake in a book, but it is far more difficult for mathematics. I have discovered a few corrections needed for The Weibull Bible published in 2022. Please print out the list of corrections below & apply them to your Weibull studies based on my book. If you find something else that looks wrong, please e-mail me (paul-watson@sbcglobal.net)

When it seems most of the errors have been found, I will update the master copy sold through all the various book sellers so new sales will be (hopefully) error free. Your endulgence is appreciated. Please know a great deal of effort went into this book and I proof read it many times; yet, some errors still slipped into the reader’s world.

Page 69 problem 6. Revise table header from Data Point Number to Data Set Size

Page 104 3^rd text line: CDF represents probability as area under ... Should read “PDF represents probability as area under ...”

Page 106 Eq 6-4 is incorrectly stated. The 2 parameter Weibull should not include Xo as Xo value is zero, and thus dropped out of equation . The corrected Eq 6-4 follows:

Page 144 3^rd bullet should be updated for clarity. The text should be clarified as follows:

 “For accurate results, some populations require use of a 3 parameter Weibull. Because this circumstance is often not obvious, it is best to run both the two and the three parameter Weibull analyses before comparing the results. Users who rely solely on spreadsheet Weibull Analysis do not have this option because performance of a 3 parameter Weibull by spreadsheet is tedious.”

Page 198 Figure 10-8 has an error: “ac” should be “ab”.

The resulting figure is shown at right.

Page 236 Appendix D: Terms of the Binomial were incorrectly identified by the "bullet list". Text must be revised as follows

• Exactly one data-point falls in region p of Fig D-1 (compute from 5^th Term of Eq D-1.
• Exactly two data-points fall in region p of Fig D-1 (computed from 4^th + 5^th Terms)
• Exactly three data-points ... (computed from 3^rd + 4^th + 5^th Terms)
• Exactly four data-points... (computed from 2^nd + 3^rd + 4^th + 5^th Terms)
• All five data-points fall in ... (computed from 1^st through 5^th Terms)

End Errata as of 12 Dec 2023

Copyright 2023 by Paul F. Watson, All Rights Reserved

Notify paul-watson@sbcglobal.net if additional corrections are identified

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