Texas Instruments TI-84 Plus Guide Book

Chapter 13: Inferential Statistics and Distributions 333
of 7.1 calculated from the larger random sample. This time, use the Stats (summary
statistics) input option.
7. Press … |
8 to display the inferential stat
editor for
TInterval.
Press ~ Í to select
Inpt:Stats. The editor
changes so that you can enter summary statistics
as input.
8. Press †
163 Ë 8 Í to store 163.8 to v.
Press
7 Ë 1 Í to store 7.1 to Sx.
Press
90 Í to store 90 to n.
9. Press † to move the cursor onto
Calculate, and
then press Í to calculate the new 99 percent
confidence interval. The results are displayed on
the home screen.

Texas Instruments TI-84 Plus Specifications

General

Battery type	AAA
Power source	Battery
Number of batteries supported	4
Type	Graphing
Cover	No
Form factor	Pocket
Control type	Buttons
Product color	Black
USB port	Yes
USB 2.0 ports quantity	1
Digits	- digits
Display number of lines	8 lines
Display number of characters	16
RAM capacity	0.024 MB
ROM capacity	0.480 MB
Storage media type	-