| dc.contributor.supervisor |
Davies, Katherine (Statistics) |
en_US |
| dc.contributor.author |
Galloway, Katherine Anne Forsyth
|
|
| dc.date.accessioned |
2013-07-03T20:47:41Z |
|
| dc.date.available |
2013-07-03T20:47:41Z |
|
| dc.date.issued |
2013-07-03 |
|
| dc.identifier.uri |
http://hdl.handle.net/1993/21696 |
|
| dc.description.abstract |
In reliability studies, the goal is to gain knowledge about a product's failure times or life expectancy. Precedence tests do not require large sample sizes and are used in reliability studies to compare the life-time distributions from two samples. Precedence tests are useful since they provide reliable results early in a life-test and the surviving units can be used in other tests. Ng and Balakrishnan (2010) proposed a precedence-type test based on the Kaplan-Meier estimator of the cumulative distribution function.
A precedence-type test based on the Nelson-Aalen estimator of the cumulative hazard function has been proposed. This test was developed for both Type-II right censoring and progressive Type-II right censoring. Numerical results, including illustrative examples, critical values and a power study have been provided. The results from this test were compared with those from the test based on the Kaplan-Meier estimator. |
en_US |
| dc.subject |
Nonparametric procedures |
en_US |
| dc.subject |
Precedence test |
en_US |
| dc.subject |
Nelson-Aalen estimator |
en_US |
| dc.subject |
Kaplan-Meier estimator |
en_US |
| dc.subject |
Type-II right censoring |
en_US |
| dc.subject |
Progressive Type-II right censoring |
en_US |
| dc.subject |
Life-testing |
en_US |
| dc.title |
Precedence-type test based on the Nelson-Aalen estimator of the cumulative hazard function |
en_US |
| dc.degree.discipline |
Statistics |
en_US |
| dc.contributor.examiningcommittee |
Muthukumarana, Saman (Statistics) Lix, Lisa (Community Health Sciences) |
en_US |
| dc.degree.level |
Master of Science (M.Sc.) |
en_US |
| dc.description.note |
October 2013 |
en_US |
