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Case Study 1: Analysis of Air Conditioner Claims Data

In: Warranty Data Collection and Analysis

Author

Listed:
  • Wallace R. Blischke
  • M. Rezaul Karim

    (Rajshahi University)

  • D. N. Prabhakar Murthy

    (The University of Queensland)

Abstract

The first 18 months of warranty claims data on twenty components of a room air conditioner unit covered under a free-replacement warranty are analyzed. Analyses include preliminary data cleaning and outlier detection, data summary and description, histograms, and Pareto charts to identify most frequently failing components and failure modes, and to select data sets for further analysis. Detailed analyses applied to the selected data include analysis of variance, goodness-of-fit tests for model selection, and nonparametric methods. Time to failure at the component and product level are modeled and the results and used to estimate product reliability, predict future costs and compare alternative warranty policies.

Suggested Citation

  • Wallace R. Blischke & M. Rezaul Karim & D. N. Prabhakar Murthy, 2011. "Case Study 1: Analysis of Air Conditioner Claims Data," Springer Series in Reliability Engineering, in: Warranty Data Collection and Analysis, chapter 0, pages 439-473, Springer.
    • Handle: RePEc:spr:ssrchp:978-0-85729-647-4_17
    DOI: 10.1007/978-0-85729-647-4_17
    as

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