View Proposal #115
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| ID | 115 |
|---|---|
| First Name | Mahmoud |
| Last Name | Almanassra |
| Institution | Wartburg College |
| Speaker Category | faculty |
| Title of Talk | On the Negative Mass Assigned By the Univariate Zao-Tsiatis and Wang Estimators |
| Abstract | The Zhao-Tsiatis estimator, for the restricted quality adjusted lifetime (RQAL), is not a monotonic estimator and hence it is not a proper survival function. The Wang estimator, which is a modified version of the ZT-estimator, is also not a monotonic estimator. Both the ZT-estimator and the W-estimator are consistent and reasonably efficient estimators. The simple weighted estimator is monotonic and consistent, but it is less efficient than the other two estimators mentioned above. I will identify the jump points of the simple weighted estimator, the ZT-estimator and the W-estimator. I will also identify which of these points are assigned a negative mass by the estimator. Moreover, I will propose two new consistent estimators for the survival functions of the RQAL. |
| Subject area(s) | |
| Suitable for undergraduates? | ??? |
| Day Preference | |
| Computer Needed? | |
| Bringing a laptop? | N |
| Overhead Needed? | Y |
| Software requests | |
| Special Needs | |
| Date Submitted | 3/11/2005 |
| Year | 2005 |