Table of predicted number of failures for Warranty Prediction

The Table of Predicted Number of Failures displays information about the potential and predicted number of failures for future times:
  • The potential number of failures at a future time period is the number of units at risk at the end of the data collection period (the "present: time") plus the cumulative number of additional units that will ship in each subsequent time period.
  • The predicted number of failures is the cumulative number of failures that the model predicts from the end of the data collection period (the "present time") through the given number of future time periods.
  • The 95% Poisson confidence interval is a 95% confidence interval for the predicted number of failures.

Example output

Table of Predicted Number of Failures Future Potential Predicted Time Number of Number of 95% Poisson CI Period Failures Failures Lower Upper 1 12931 13.1073 7.0000 22.3660 2 13931 27.4930 18.1933 39.8678 3 14931 43.1798 31.2722 58.1271 4 15931 60.1892 45.9516 77.4449 5 16931 78.5416 62.1373 97.9488

Interpretation

Five months from now, 16,931 units will be at risk. With 95% confidence, the engineer can expect the number of failures to fall between approximately 62 and 98.

By using this site you agree to the use of cookies for analytics and personalized content.  Read our policy