Understanding what sampling distributions are and what affects them is very important for you to be able to grasp conceptually the majority of the rest of the course. Unit 8 discusses the concept of a sampling distribution. This discussion will help us examine them further with opportunity for some questions and answers, if you have them. Go again to Online Stat BookLinks to an external site. to see the Rice Virtual Lab in Statistics (RVLS). The RVLS has several demonstrations, case studies, and a "built-in" textbook that you may find useful. Click on Simulations/Demonstrations on the home page and then click on Sampling Distribution Simulation on the next page and read the instructions. Then click on Begin to go to the simulation page. On the simulation page you should see four frames with number lines. The top frame represents a population distribution with the M, Median, and SD as given. The next three frames can be used to graph data that is randomly sampled from this population. Do the following: Change the bottom frame (the fourth one) to give the Mean with N of 25 and click on Fit normal. This will randomly draw 25 cases from the top population