Temperatures and O-ring failures for the launches of the space shuttle Challenger

Data for Examples 1.11, 1.12, 1.13, 2.11 and 5.1

Challeng

Format

A data frame/tibble with 25 observations on four variables

flight

a character variable indicating the flight

date

date of the flight

temp

temperature (in fahrenheit)

failures

number of failures

Source

Dalal, S. R., Fowlkes, E. B., Hoadley, B. 1989. “Risk Analysis of the Space Shuttle: Pre-Challenger Prediction of Failure.” Journal of the American Statistical Association, 84, No. 408, 945-957.

References

Kitchens, L. J. (2003) Basic Statistics and Data Analysis. Pacific Grove, CA: Brooks/Cole, a division of Thomson Learning.

Examples

stem(Challeng$temp)
#> 
#>   The decimal point is 1 digit(s) to the right of the |
#> 
#>   2 | 1
#>   4 | 378
#>   6 | 3677789000023556689
#>   8 | 01
#> 
summary(Challeng$temp)
#>    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
#>   31.00   67.00   70.00   68.44   75.00   81.00 
IQR(Challeng$temp)
#> [1] 8
quantile(Challeng$temp)
#>   0%  25%  50%  75% 100% 
#>   31   67   70   75   81 
fivenum(Challeng$temp)
#> [1] 31 67 70 75 81
stem(sort(Challeng$temp)[-1])
#> 
#>   The decimal point is 1 digit(s) to the right of the |
#> 
#>   5 | 378
#>   6 | 3677789
#>   7 | 000023556689
#>   8 | 01
#> 
summary(sort(Challeng$temp)[-1])
#>    Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
#>   53.00   67.00   70.00   70.00   75.25   81.00 
IQR(sort(Challeng$temp)[-1])
#> [1] 8.25
quantile(sort(Challeng$temp)[-1])
#>    0%   25%   50%   75%  100% 
#> 53.00 67.00 70.00 75.25 81.00 
fivenum(sort(Challeng$temp)[-1])
#> [1] 53.0 67.0 70.0 75.5 81.0
par(mfrow=c(1, 2))
qqnorm(Challeng$temp)
qqline(Challeng$temp)
qqnorm(sort(Challeng$temp)[-1])
qqline(sort(Challeng$temp)[-1])

par(mfrow=c(1, 1))