svyttest {survey} | R Documentation |

## Design-based t-test

### Description

One-sample or two-sample t-test. This function is a wrapper for
`svymean`

in the one-sample case and for
`svyglm`

in the two-sample case. Degrees of freedom are
`degf(design)`

for the one-sample test and `degf(design)-1`

for the two-sample case.

### Usage

svyttest(formula, design, ...)

### Arguments

`formula` |
Formula, `outcome~group` for two-sample,
`outcome~0` or `outcome~1` for one-sample |

`design` |
survey design object |

`...` |
for methods |

### Value

Object of class `htest`

### See Also

`t.test`

### Examples

data(api)
dclus2<-svydesign(id=~dnum+snum, fpc=~fpc1+fpc2, data=apiclus2)
svyttest(enroll~comp.imp, dclus2)
svyttest(I(api00-api99)~0, dclus2)

[Package

*survey* version 3.18

Index]