Hypothesis testing: Please help me with the sample problem 2 (one attachment page 4).
If you have trouble with the attachments, you can download them here:
http://www.sunflowerlabs.com/samples/c2fecd130004.jpg© BrainMass Inc. brainmass.com March 4, 2021, 5:38 pm ad1c9bdddf
a) from the graph, brand A and C are significantly different (at 95%). Because there's no overlap between their confidence intervals. ...
The solution discusses teh confidence intervals, t-stat value and mean for two different brands of cigarettes.