Discussion:
Develop a problem statement. Let's assume that the question deals with the age of college juniors.
1) Establish the null hypothesis (H0) and the alternate hypothesis (H1).
2) Select the level of significance, that is.
3) Select an appropriate test statistic.
4) Formulate a decision rule based on steps 1, 2, and 3 above.
5) Make a decision regarding the null hypothesis based on the sample information. Interpret the results of the test.