Examining the Confidence Intervals for Two Populations
Not what you're looking for? Search our solutions OR ask your own Custom question.
Consider the result in the following table for two random sample taken from two populations:
Sample 1
n1 = 50

x = 22
Ïƒ1 = 4
Sample 2
n2=35

x2 = 14
Ïƒ2= 5
a) provide a 90% confidence interval for difference between the two population means.
b) provide a 97% confidence interval for the difference between the two population means.
Â© BrainMass Inc. brainmass.com December 24, 2021, 8:14 pm ad1c9bdddfhttps://brainmass.com/statistics/sampling/examiningconfidenceintervalstwopopulations259476
Solution Preview
Consider the result in the following table for two random sample taken from two populations:
Sample 1
n1 = 50

x = 22
Ïƒ1 = 4
Sample 2
n2=35

x2 = 14
Ïƒ2= 5
a) provide a 90% confidence interval for difference between the two population means.
Given n1=50, xbar1=22, ...
Solution Summary
The solution examines the confidence intervals for two populations. A 90% and 97% confidence interval for the difference is provided.
$2.49