User Manual

TI-83 Plus Inferential Statistics and Distributions 410
1
.
PropZInt
1
.
PropZInt
(one-proportion
z
confidence interval; item
A
) computes a
confidence interval for an unknown proportion of successes. It takes as
input the count of successes in the sample
x
and the count of
observations in the sample
n
. The computed confidence interval depends
on the user-specified confidence level.
Input:
,
Calculated results: