User Manual - Page 409

For 83PL/TBL/1L1/A.

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TI-83 Plus Inferential Statistics and Distributions 406
TInterval
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:
L6={1.6 1.7 1.8 1.9}
Data Stats
Input:
,,
Calculated results:
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