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Inference app 253
Results The results are:
Two-Proportion Z-Interval
Menu name Z-Int:
1
–
2
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:
Results The results are:
Result Description
CConfidence level
Critical Z Critical values for Z
Lower Lower bound for
Upper Upper bound for
Field
name
Definition
Sample 1 success count
Sample 2 success count
n
1
Sample 1 size
n
2
Sample 2 size
C Confidence level
x
1
x
2
Result Description
CConfidence level
Critical Z Critical values for Z
Lower Lower bound for
Upper Upper bound for