Samptint - Texas Instruments TI-83 Manual Book

Calculated results:

2.SampTInt

(two-sample confidence interval; item ) computes a
2.SampTInt t 0
confidence interval for the difference between two population means
Nm ) when both population standard deviations ( s and s
(m ) are
1 2 1 2
unknown. The computed confidence interval depends on the user-
specified confidence level.
In the example:
SAMP1={12.207 16.869 25.05 22.429 8.456 10.589}
SAMP2={11.074 9.686 12.064 9.351 8.182 6.642}
TI-83 Plus Inferential Statistics and Distributions 408