Results

The results are:

Result Description

CConfidence level

Critical Z Critical values for Z

Lower

Lower bound for π

Upper

Upper bound for π

 

 

Two-Proportion Z-Interval

Menu name

Z-Int: π1 π2

 

 

This option uses the Normal Z-distribution to calculate a

 

confidence interval for the difference between the

 

proportions of successes in two populations.

Inputs

The inputs are:

 

 

 

 

 

Field

Definition

 

name

 

 

 

 

 

x1

Sample 1 success count

 

x2

Sample 2 success count

 

n1

Sample 1 size

 

n2

Sample 2 size

 

C

Confidence level

Results

The results are:

 

Result Description

CConfidence level

Critical Z Critical values for Z

Lower

Lower bound for Δπ

Upper

Upper bound for Δπ

 

 

Inference app

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HP Prime Graphing NW280AAABA Two-Proportion Z-Interval, Menu name Int π1 π2, Proportions of successes in two populations