There are different types of hypothesis testing. The most commonly used ones are as follows:

• Z-test
• T-test
• ANOVA test
• Chi-squared test

Going through each type of test is beyond the scope of this book. We recommend checking out Wikipedia or the links in the Further reading section to get detailed information about them. However, we are going to look at the Z-test and the T-test in this book. In the preceding examples, we only used the Z-test.