T-Tests Assignment

Load Packages

haven

if (!require(haven)){
  install.packages("haven", dependencies = TRUE)
  require(haven)
}

tidyverse

if (!require(tidyverse)){
  install.packages("tidyverse", dependencies = TRUE)
  require(tidyverse)
}

Import Data

dataset <- read_sav ("Harry Potter Data (1).sav")

T-Test

t.test(formula = FFM_2 ~ CoinFlip,
       data = dataset,
       var.equal = FALSE)

    Welch Two Sample t-test

data:  FFM_2 by CoinFlip
t = -0.10873, df = 70.386, p-value = 0.9137
alternative hypothesis: true difference in means between group 1 and group 2 is not equal to 0
95 percent confidence interval:
 -0.5036667  0.4515834
sample estimates:
mean in group 1 mean in group 2 
       2.640625        2.666667