acfail: Failures of air conditioning equipment.

In trobinj/trtools: Miscellaneous Tools for Teaching Statistics

Failures of air conditioning equipment.

Description

Successive times until failure of air conditioning equipment on Boeing 720 aircraft.

Usage

acfail

Format

A data frame of 213 observations on two variables.

aircraft:

identifier of the aircraft

time:

time until failure (hours)

Note

The data are from Proschan (1963) who reported times between successive failures on each plane. Gaver and O'Muircheartaigh (1987) featured the same data but as the number of failures for each aircraft.

Source

Gaver, D. P. & O'Muircheartaigh, I. G. (1987). Robust empirical Bayes analysis of event rates. Technometrics, 29, 1–15.

Proschan, F. (1963). Theoretical explanation of observed decreasing failure rate. Technometrics, 5, 375–383.

trobinj/trtools documentation built on Jan. 28, 2024, 3:20 a.m.