Section 4.2 Learning Objectives
By the end of this chapter, you will be able to:
-
Create simple data frames in R to represent grouped numeric data
-
Combine datasets by binding rows and joining tables using base R and tidyverse tools
-
Calculate and interpret group means using
mean() -
Visualize differences between two groups using appropriate plots (e.g., boxplots with jittered points)
-
Conduct and interpret an independent samples t-test using
t.test() -
Evaluate statistical significance using p-values and distinguish statistical significance from differences in averages
