This is an example of how to do a confidence interval on a mean (t-distribution) problem using the StatHelper. This is a very common problem statistics students face in their respective classes. This example would normally take upwards of 30 minutes to complete, however, with the StatHelper the question is completed in less than 10 minutes! Access to the StatHelper software can be purchased at responsumanalytics.com/stathe...
The dataset can be downloaded here:
docs.google.com/spreadsheets/...