TI-83 Plus Inferential Statistics and Distributions 411
2.PropZInt
2.PropZInt (two-proportion z confidence interval; item B) computes a
confidence interval for the difference between the proportion of
successes in two populations (p1Np2). It takes as input the count of
successes in each sample (x1 and x2) and the count of observations in
each sample
(n1 and n2). The computed confidence interval depends on
the user-specified confidence level.
Input:
,
Calculated results: