t-test (paired)

MinutePlot^® and R on the same data. MinutePlot version 1.0.0; R 4.5.2.

Dataset

• sleep — Extra hours of sleep under two drugs for the same 10 patients (R: datasets::sleep; Student 1908).
• Data format for MinutePlot: sleep_minuteplot.csv — arranged exactly as the app’s data template for this test expects (paste it into the app).
• Data format for R: sleep_r.csv — the long-format file the R script reads (keep it in the script’s folder).
• R built-in: the script loads sleep with data().

Setup

In MinutePlot:

• Workbench → t-test (paired) → paste sleep_minuteplot.csv (the two conditions as rows; column rk is patient k in both rows).
• α = 0.05 → Confirm and Analyze.

In R:

• Base R only; then run ttest_paired_sleep.R top to bottom (source it, or paste it into the console) with the R data file in the same folder.
• R 4.5.2 and the package versions in the page header; each script prints the versions it runs under.

The analysis:

• Paired t-test: group 1 vs group 2 (10 pairs), two-sided, α = 0.05.
• MinutePlot’s 95 % CI column is Hedges’ g with its CI (the app reports effect sizes); R’s is the CI of the mean difference.

Side-by-side results

t, df, p and 95 % confidence interval

Verdict

R script

ttest_paired_sleep.R — each script loads its data, prints its versions and the R-side tables shown above, in page order; no plotting.