Confidence Intervals; One-Sample Z-Interval - HP 39g+ User Manual

Results

Confidence intervals

One-Sample Z-Interval

Menu name
Inputs
Inference aplet
The results are:
Result Description
Test T T-Test statistic.
Prob Probability associated with the T-Test
statistic.
Critical T Boundary values of T associated with
the
The confidence interval calculations that the hp 39g+ can
perform are based on the Normal Z-distribution or
Student's t-distribution.
Z-INT: 1
This option uses the Normal Z-distribution to calculate a
confidence interval for m, the true mean of a population,
when the true population standard deviation, s, is known.
TheT inputs are:
Field Definition
name
Sample mean.
x
Population standard deviation.
Sample size.
n
Confidence level.
C
level that you supplied.
9-15