# Calculates a Wald confidence interval with continuity correction

### Description

wald.cc gives a two-sided Wald confidence interval with
continuity correction for the difference of two dependent proportions.
The continuity correction factor is *\frac{1}{n}*. Data are assumed to
be of a fourfold table, which contains the numbers of concordance
and the numbers of discordance of two dependent methods.

### Usage

1 |

### Arguments

`b` |
first number of discordant pairs in a fourfold table as described above |

`c` |
second number of discordant pairs in a fourfold table as described above |

`n` |
number of observed objects |

`alpha` |
type I error; between zero and one |

### Value

A list with class '"htest"' containing the following components:

`conf.int ` |
a confidence interval for the difference in proportions |

`estimate ` |
estimated difference in proportions |

### Author(s)

Daniela Wenzel, Antonia Zapf

### References

Fleiss, Joseph L. et al. (2003). Statistical Methods for Rates and Proportions. Wiley.

### Examples

1 2 | ```
# b=10, c=20, n=50, type I error is 0.05
conf.int=wald.cc(10,20,50,0.05)
``` |