Question: Find a university data set related to your work or business interests on the Internet, from your company, or at your library, and select a reasonable reference value to test against.
a. Draw a histogram of your data and comment on its appearance.
b. Perform the t test and report the conclusion.
c. Perform the sign test and report the conclusion.
d. Compare your two test results. If they are different, tell which one should be believed (if an appropriate choice can be made).