As we mentioned earlier, there are tons of statistical tests. The only inferential one that uses one sample that we cover in this book is the one-sample z test (see Chapter 10). But there is also the one-sample t test, which compares the mean score of a sample with another score, and sometimes that score is, indeed, the population mean, just as with the one-sample z test. In any case, you can use the one-sample z test or one-sample t test to test the same hypothesis, and you will reach the same conclusions (although you will be using different values and tables to do so).
