Texas Instruments TI-84 - Manual (Page 336)

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
Л
8
Н to store 163.8 to v.
Press 7
Л
1
Н 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.