Wald_CI_CC_2x2 {contingencytables} | R Documentation |

## The Wald confidence interval for the difference between probabilities

### Description

The Wald confidence interval for the difference between probabilities with Yates's continuity correction. Described in Chapter 4 "The 2x2 Table"

### Usage

```
Wald_CI_CC_2x2(n, alpha = 0.05)
```

### Arguments

`n` |
the observed counts (a 2x2 matrix) |

`alpha` |
the nominal level, e.g. 0.05 for 95% CIs |

### Value

An object of the contingencytables_result class,
basically a subclass of `base::list()`

. Use the `utils::str()`

function
to see the specific elements returned.

### Examples

```
# An RCT of high vs standard dose of epinephrine (Perondi et al., 2004)
Wald_CI_CC_2x2(perondi_2004)
# The association between CHRNA4 genotype and XFS (Ritland et al., 2007)
Wald_CI_CC_2x2(ritland_2007)
```

[Package

*contingencytables*version 3.0.0 Index]