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Section 4.7 Checklist

Subsection 4.7.1 Data Creation & Import

  • [ ] Loaded or created your datasets in R (data.frame, CSV, API, or package)
  • [ ] Inspected your data using head(), str(), or summary()
  • [ ] Combined datasets by rows using rbind() when appropriate
  • [ ] Joined datasets using merge() or a SQL-style join
  • [ ] Verified merges by checking row and column counts (nrow(), ncol())
  • [ ] Reshaped data if needed using pivot_longer() or pivot_wider()

Subsection 4.7.2 Comparing Two Means

  • [ ] Calculated group means using mean()
  • [ ] Determined whether the design is paired or independent
  • [ ] Selected the correct t-test (paired or unpaired)
  • [ ] Ran the t-test using t.test()
  • [ ] Compared the p-value to the 0.05 threshold
  • [ ] Clearly stated your conclusion in plain language