Two-Sample Z-Interval - HP 39g+ User Manual

Results

Two-Sample Z-Interval

Menu name
Inputs
Results
9-16
The results are:
Result Description
Critical Z Critical value for Z.
min Lower bound for .
max Upper bound for .
Z-INT: –
This option uses the Normal Z-distribution to calculate a
confidence interval for the difference between the means
of two populations,
deviations, and
1
The inputs are:
Field Definition
name
Sample 1 mean.
x1
Sample 2 mean.
x2
Sample 1 size.
n1
Sample 2 size.
n2
Population 1 standard deviation.
1
Population 2 standard deviation.
2
Confidence level.
C
The results are:
Result Description
Critical Z Critical value for Z.
Lower bound for
Min
Upper bound for
Max
– , when the population standard
, are known.
2
–
–
.
.
Inference aplet