Texas Instruments TI-84 PLUS - Graphing Calculator User Manual

Chapter 13: Inferential Statistics and Distributions 230
2-SampZInt
2-SampZInt (two-sample z confidence interval; item 9) 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 known. The computed confidence interval depends on the user-specified confidence
level.
In the example:
LISTC={154, 109, 137, 115, 140}
LISTD={108, 115, 126, 92, 146}
Calculated
results:
Data Stats
Input:
Calculated
results:
Data Stats

Texas Instruments TI-84 PLUS - Graphing Calculator Specifications

General

Type	Graphing Calculator
Display Type	LCD
Screen Resolution	96 x 64 pixels
Processor	Zilog Z80
Memory	24 KB RAM, 480 KB Flash ROM
Power Source	4 AAA batteries (with backup lithium battery)
Connectivity	I/O port
Weight	7.4 oz (210 g)
Software	TI-OS (Texas Instruments Operating System)