Estimating Chip Failure Time: Geometric MLE

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SUMMARY

The discussion focuses on estimating the time until the first failure of a chip using Maximum Likelihood Estimation (MLE) with a geometric distribution. Three chips were tested, operating for 30, 34, and 33 days without failure. Participants debated whether to use the geometric distribution or approximate it with the exponential distribution, considering the nature of the failure events as potentially Poisson-distributed. The conclusion leans towards using the exponential distribution for MLE due to the continuous nature of the time data.

PREREQUISITES
  • Understanding of Maximum Likelihood Estimation (MLE)
  • Knowledge of geometric and exponential distributions
  • Familiarity with Poisson processes
  • Basic statistical analysis skills
NEXT STEPS
  • Research the properties of geometric and exponential distributions
  • Learn how to apply Maximum Likelihood Estimation in statistical modeling
  • Explore Poisson processes and their applications in failure analysis
  • Study real-world examples of MLE in reliability engineering
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Statisticians, data analysts, reliability engineers, and anyone involved in failure time analysis and modeling using MLE techniques.

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Homework Statement


time till first failure of a chip is to be estimated. 3 such chips were tested, they worked for 30, 34, 33 days without failure. Find MLE of the parameter.

The Attempt at a Solution


first i want to confirm this: is this geometric distribution?
 
Last edited:
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I'm not too sure. It looks like you could approximate it and find the maximum likelyhood using the exponential distribution since you could very well be dealing with poisson-distributed events.
 

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