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Section 4.7 Checklist
Subsection 4.7.1 Data Creation & Import
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[ ] Loaded or created your datasets in R (data.frame, CSV, API, or package)
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[ ] Inspected your data using head(), str(), or summary()
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[ ] Combined datasets by rows using rbind() when appropriate
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[ ] Joined datasets using merge() or a SQL-style join
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[ ] Verified merges by checking row and column counts (nrow(), ncol())
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[ ] Reshaped data if needed using pivot_longer() or pivot_wider()
Subsection 4.7.2 Comparing Two Means
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[ ] Calculated group means using mean()
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[ ] Determined whether the design is paired or independent
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[ ] Selected the correct t-test (paired or unpaired)
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[ ] Ran the t-test using t.test()
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[ ] Compared the p-value to the 0.05 threshold
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[ ] Clearly stated your conclusion in plain language