Interval estimation is probably the easier approach to learn.
If you read these two sections carefully, then the rest of the chapter is the same concept just applied to estimating intervals for different parameters. A summary of formulas for estimating various intervals is printed on the inside cover of your text. Chapter 8 deals with hypothesis testing. The basics are explained in sections 8.1- 8.2 but are a little tedious to understand on your own. By taking a sample and comparing it to what we would expect to find if the hypothesis were really true, we make a decision as to whether we will accept or reject the hypothesis.