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
Time
Period
Potential
Number of
Failures
Predicted
Number of
Failures


95% Poisson CI
LowerUpper
11293113.10737.000022.3660
21393127.493018.193339.8678
31493143.179831.272258.1271
41593160.189245.951677.4449
51693178.541662.137397.9488

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.