Achievements to Unlock

  • Achievement 1: Understanding the relationship between one categorical variable and one continuous variable using histograms, means, and standard deviations
  • Achievement 2: Comparing a sample mean to a population mean with a one-sample t-test
  • Achievement 3: Comparing two unrelated sample means with an independent-samples t-test
  • Achievement 4: Comparing two related sample means with a dependent-samples t-test
  • Achievement 5: Computing and interpreting an effect size for significant t-tests
  • Achievement 6: Examining and checking the underlying assumptions for using the t-test
  • Achievement 7: Identifying and using alternate tests when t-test assumptions are not met