HOW TO FIND POOLED TWO SAMPLE T CONFIDENCE INTERVALS WITH TI83 CALCULATOR

Steps	Key Sequence	Screens
1. Follow steps 1–9 for two–sample t CI OR steps 1–7 for two–sample t CI using data
2. Enter yes for Pooled	press ENTER on Yes
3. Calculate CI	once, ENTER
4. Scroll down to find more calculations	Press
In this case the 95% CI is –9.858 to 24.658.