Today is a pretty thick lesson on sampling distributions for p-hat (sample proportions) and x-bar (sample means). Chapter 18 in the textbook is your friend if you need additional enrichment. Here are the class notes and examples:
- Slides in color PDF [not print-friendly] | [Printer-friendly version]
- Example problems: Sampling Distributions with Proportions and Means
- HW #31 Problems (if you're too lazy to get your textbook)
Also, here is a link to the sampling distributions applet used in class, if anyone wishes to play around with it: