HP 39gII

Inference app 115
Results The results are:
One-Proportion Z-Interval
Menu name Z-int: 1π
This option uses the Normal Z-distribution to calculate a
confidence interval for the proportion of successes in a
population for the case in which a sample of size, n, has
a number of successes, x.
Inputs The inputs are:
Results The results are:
σ
1
Population 1 standard deviation.
σ
2
Population 2 standard deviation.
C Confidence level.
Field
name
Definition
Result Description
C Confidence level.
Critical Z Critical values for Z.
Lower Lower bound for μ.
Upper Upper bound for μ.
Δ
Δ
Field
name
Definition
x Sample success count.
n Sample size.
C Confidence level.
Result Description
C Confidence level.