A shortcut wrapper function to get the observed test statistic for a t test.

t_stat( x, formula, response = NULL, explanatory = NULL, order = NULL, alternative = "two-sided", mu = 0, conf_int = FALSE, conf_level = 0.95, ... )

x | A data frame that can be coerced into a tibble. |
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formula | A formula with the response variable on the left and the explanatory on the right. |

response | The variable name in |

explanatory | The variable name in |

order | A string vector of specifying the order in which the levels of
the explanatory variable should be ordered for subtraction, where |

alternative | Character string giving the direction of the alternative
hypothesis. Options are |

mu | A numeric value giving the hypothesized null mean value for a one sample test and the hypothesized difference for a two sample test. |

conf_int | A logical value for whether to include the confidence
interval or not. |

conf_level | A numeric value between 0 and 1. Default value is 0.95. |

... | Pass in arguments to \infer\ functions. |

library(tidyr) # t test statistic for true mean number of hours worked # per week of 40 gss %>% t_stat(response = hours, mu = 40)#> t #> 2.085191# t test statistic for number of hours worked per week # by college degree status gss %>% tidyr::drop_na(college) %>% t_stat(formula = hours ~ college, order = c("degree", "no degree"), alternative = "two-sided")#> t #> 1.11931