Comparative Study Of Robust Estimators Of Location Using Mahalanobis Depth
Journal Title: BEST : International Journal of Management, Information Technology and Engineering ( BEST : IJMITE ) - Year 2017, Vol 5, Issue 2
Abstract
The sample mean is not a robust estimator of location and thus can produce misleading information when the data are not normally distributed. In this paper we studied three different robust estimators of location and compared their performance in providing better Mahalanobis depth with that of median (another robust measure) and mean. Comparing the performance of the five different estimators of location we have that M-estimator is more efficient than the other four methods in providing better depth for the significant test of equal population mean vectors when the data is free from outlier. In the presence of outlier median and trimmed mean seems to be better than the others. The whole five measures produced inconsistent result when the data are normally distributed.
Authors and Affiliations
OKEKE, EVELYN NKIRUKA, OKEKE, JOSEPH UCHENNA
Keywords
Related Articles
- EP ID EP223717
- DOI -
- Views 154
- Downloads 0
Implementation of TQM Principles in HRD in Organisations
Improving quality has become a company-wide effort as the ever-increasing globalization of business underscores the stipulation of continuous enhancement Successful companies comprehend the powerful impact customer-defin...
A Study on Employee Job Satisfaction with Special Reference to Ashok Leyland, Chennai
The research project entitled ‘Employee Job Satisfaction” is to understand the satisfaction level of the employees working at a diverse level at the Ashok Leyland Ltd., Chennai. The primary data was collected through a s...
Using Qfd to Evolve a Model Curricula to Enhance Employability: A Case Study
A case study has been conducted in an ongoing business school to illustrate the QFD methodology as a tool to convert employability attributes into a course curriculum. The purpose is to develop a curriculum which helps t...
Application of the Bow-Tie Model in Air Transportation Safety Risk Analysis
To improve aviation safety, effectiveness, one should systematically analyze and assess the risks of aviation errors and determine the possible causes. There are many existing risk management methods for aviation, but no...
Impact on Advertisement of Consumer Preference for Jewellery Shop
The advertisement has become as integral part of today’s marketing scenario. In earlier times, the advertisement was not given as much emphasis as it is being given today. The Instituted of practitioners in advertising d...