13-16 Inferential Statistics and Distributions
8313INFE.DOC TI-83 international English Bob Fedorisko Revised: 02/19/01 12:47 PM Printed: 02/19/01 1:38 PM
Page 16 of 36
ZInterval (one-sample
z
confidence interval; item 7)
computes a confidence interval for an unknown population
mean
m
when the population standard deviation
s
is
known. The computed confidence interval depends on the
user-specified confidence level.
In the example:
L
1
={299.4 297.7 301 298.9 300.2 297}
Data Stats
Input:
,,
Calculated results:
ZInterval
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