Chapter 13: Inferential Statistics and Distributions
230
2-SampZInt
2-SampZInt
(two-sample
z
confidence interval; item
9
) computes a confidence interval for the
difference between two population means (
m
1
Nm
2
) when both population standard deviations (
s
1
and
s
2
) are known. The computed confidence interval depends on the user-specified confidence
level.
In the example:
LISTC={154, 109, 137, 115, 140}
LISTD={108, 115, 126, 92, 146}
Calculated
results:
Data
Stats
Input:
Calculated
results:
Data
Stats
