Texas Instruments TI-Nspire CX User Manual page 42

use [ctrl]
That will turn ( )
into [ ]
Go to Menu
4: Statistics
4: Stat Test
2:t test
you are not using the 2
sample t-test because
you are measuring the
actual difference against
"0"
Data method input is "Data
use "0"
For
Always choose
The two tailed test
Put your results in d
0
TI-Inspire manual 40