shuttle {SMPracticals}

O-ring Thermal Distress Data for Space Shuttle

Description

Data on the number of rubber O-rings showing thermal distress for 23 flights of the space shuttle, with the ambient temperature and pressure at which tests on the putty next to the rings were performed.

Usage

data(shuttle)

Format

A data frame with 23 observations on the following 4 variables.

m

Number of rings

r

Number of rings showing thermal distress

temperature

ambient temperature (degrees Fahrenheit)

pressure

pressure (pounds per square inch)

Source

Dalal, S. R., Fowlkes, E. B. and Hoadley, B. (1989) Risk analysis of the space shuttle: Pre-Challenger prediction of failure. Journal of the American Statistical Association, 84, 945–957.

References

Davison, A. C. (2003) Statistical Models. Cambridge University Press. Page 7.

Examples

data(shuttle)
attach(shuttle)
plot(temperature, r/m,ylab="Proportion of failures")