Related Procedures

The one-sample t test can be used whenever sample means must be compared to a known test value. As with all t tests, the one-sample t test assumes that the data be reasonably normally distributed, especially with respect to skewness. Extreme or outlying values should be carefully checked; boxplots are very handy for this.

There are other procedures which you can use to test the assumption of normality. See the topic Exploratory Data Analysis for more information.