Compare pairwise means

Compare means of vocabulary scores using the pairwise.t.test() function for all pairings of social classes.

Este exercício faz parte do curso

Inference for Numerical Data in R

Conduct a pairwise t-test on vocabulary scores and social class. Set p.adjust.method to "none" (we'll adjust the significance level, not the p-value).
Tidy the result.
Do the data provide convincing evidence of a difference in the average vocabulary scores of those who self identified as middle class and those who self identified as lower class?

Experimente este exercício completando este código de exemplo.

# Run a pairwise t-test on wordsum and class, without adjustment
t_test_results <- ___

# Tidy the result
___