Texas Instruments TI-84 - Manual (Page 358)

Chapter 13: Inferential Statistics and Distributions 355
2-SampTInt 2-SampTInt 2-SampTInt 2-SampTInt
2-SampTInt (two-sample t confidence interval; item 0 ) computes a confidence interval for
the difference between two population means ( m
1
Nm
2
) when both population standard
deviations ( s
1
and s
2
) are unknown. The computed confidence interval depends on the
user-specified confidence level.
In the example:
Calculated
results:
Data Stats