Survival time of mice injected with an experimental lethal drug

Data for Example 6.12

Lethal

Format

A data frame/tibble with 30 observations on one variable

survival

a numeric vector indicating time surivived after injection (in seconds)

References

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

Examples

SIGN.test(Lethal$survival, md = 45, alternative = "less")
#> 
#> 	One-sample Sign-Test
#> 
#> data:  Lethal$survival
#> s = 8, p-value = 0.008062
#> alternative hypothesis: true median is less than 45
#> 95 percent confidence interval:
#>      -Inf 41.98759
#> sample estimates:
#> median of x 
#>          38 
#> 
#> Achieved and Interpolated Confidence Intervals: 
#> 
#>                   Conf.Level L.E.pt  U.E.pt
#> Lower Achieved CI     0.8998   -Inf 41.0000
#> Interpolated CI       0.9500   -Inf 41.9876
#> Upper Achieved CI     0.9506   -Inf 42.0000
#>