The data set contains the times of successive failures for the air conditioning system of each member in a fleet of 13 Boeing 720 jet aircrafts. The data frame has 213 rows and 1 column.
This data frame contains one column,
x: pooled failure times about 213 observations.
Proschan, F. (1963). Theoretical explanation of observed decreasing failure rate. Technometrics 5, 375–83.
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