DocumentCode
811176
Title
On the hazard rate of the lognormal distribution
Author
Sweet, Arnold L.
Author_Institution
Sch. of Ind. Eng., Purdue Univ., West Lafayette, IN, USA
Volume
39
Issue
3
fYear
1990
fDate
8/1/1990 12:00:00 AM
Firstpage
325
Lastpage
328
Abstract
It is argued that plots of the hazard rate for the lognormal random variable which have appeared in some recent literature are incorrect and/or misleading; the hazard rate always begins at zero, rises to a maximum, then decreases very slowly to zero. An equation for the location of the maximum of the hazard rate is derived. The maximum lies in a finite interval for all positive values of the standard deviation of the associated normal random variable. Approximations that can be used to compute the hazard rate for parameter values outside of the usual range in the tables associated with the normal (Gaussian) random variable are presented
Keywords
failure analysis; reliability theory; statistical analysis; failure rate; hazard rate; lognormal distribution; random variable; reliability; Books; Equations; Hazards; Log-normal distribution; Random variables; Reliability theory; Shape;
fLanguage
English
Journal_Title
Reliability, IEEE Transactions on
Publisher
ieee
ISSN
0018-9529
Type
jour
DOI
10.1109/24.103012
Filename
103012
Link To Document