Texas Instruments TI-84 PLUS - Graphing Calculator Manual Book page 239

1-PropZInt
(one-proportion
1-PropZInt
unknown proportion of successes. It takes as input the count of successes in the sample
count of observations in the sample
specified confidence level.
Input:
Calculated
results:
2-PropZInt
(two-proportion
2-PropZInt
difference between the proportion of successes in two populations (p
count of successes in each sample (
( and ). The computed confidence interval depends on the user-specified confidence level.
n n
1 2
Input:
Calculated
results:
confidence interval; item
z
. The computed confidence interval depends on the user-
n
confidence interval; item
z
and ) and the count of observations in each sample
x x
1 2
Chapter 13: Inferential Statistics and Distributions
) computes a confidence interval for an
A
) computes a confidence interval for the
B
). It takes as input the
Np
1 2
and the
x
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