Repair the comparison — reserved fresh check
Stage-separated edition · 2 November 2026
Fresh check — use after the named response practice
Fresh check
New equal samples in a 23°C room, same cups/lids, method and 15-minute exposure. This is one matched trial.
A matched comparison
Constructed teaching data: these values were invented for this activity, not collected in an experiment.
Setup | Mass (g) | Start (°C) | Final (°C) |
|---|---|---|---|
Sleeve U | 100 | 12 | 17 |
Sleeve V | 100 | 12 | 16 |
2. What bounded sleeve comparison is supported? What is not established?