References
- Hauck , W. W. and Anderson , S. 1986 . A Comparison of Large-Sample Confidence Interval Methods for the Difference of Two Binomial Probabilities . The American Statistician , 40 : 318 – 322 .
- Peskun , P. H. 1990 . A Note on a General Method for Obtaining Confidence Intervals From Samples From Discrete Distributions . The American Statistician , 44 : 31 – 35 .
- Triola , M. F. 1992 . Elementary Statistics, , 5th ed. , Reading , MA : Addison-Wesley .
- Welkon , C. and Reisinger , K. S. 1977 . The Phantom Taxi Seat Belt . American Journal of Public Health , 11 : 1091 – 1092 .