User Manual

Inferential Statistics and Distributions 13-17
8313INFE.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:47 PM Printed: 02/19/01 1:38 PM
Page 17 of 36
TInterval (one-sample
t
confidence interval; item 8)
computes a confidence interval for an unknown population
mean
m
when the population standard deviation
s
is
unknown. The computed confidence interval depends on
the user-specified confidence level.
In the example:
L
6
={1.6 1.7 1.8 1.9}
Data Stats
Input:
,,
Calculated results:
TInterval