Question:

A sample of seven students who were given a GMAT test before and after they took instructional review classes had the following scores.  These data are also in the accompanying spreadsheet.

You would like to be able to assert that the instructional review classes were beneficial.

1. What is the null hypothesis and what is the alternative hypothesis?
2. State which test should be used and explain why it is the appropriate test for this problem.
3. At the 0.05 level of significance, can we conclude that the instructional review classes were helpful?  Show your work.

Price: $2.99

Solution: The downloadable solution consists of 2 pages
Deliverable: Word Document