# Exam 3 Study Guide: Chapters 11-13

1. Explain how you would set up a simulation to answer the question. You do not need to actually perform the simulation, but be complete in your description. Two parts. Look at problems 11.9-29
2. A report about a statistical study is given. Identify the population, the population parameter of interest, the sampling frame, the sample, the sampling method, including whether or not randomization was employed, and any potential sources of bias you can detect and any problems you see in generalizing to the population of interest. Look at problems 12.1-10.
3. Examine the question for possible bias. If you think the question is biased, indicate how and propose a better question. Three parts. Look at problems 12.13-15.
4. Read through a situation and determine possible sources of bias. Propose a sampling strategy that uses a simple random sample. Discover problems with the sampling method and propose a better one. Look at problems 12.15-21.
5. Decide whether the statistical research was an observational study or an experiment. Identify (if possible) the subjects studied and the nature and scope of the conclusion the study or experiment an reach. Three parts. Look at problems 13.1-18.
6. Read a report about an observational study. Identify (if possible) whether it was retrospective or prospective and the parameter of interest. Look at problems 13.1-18.
7. Identify the type of sampling used in each of the situations. Five parts. Know the sampling methods from chapter 12.
8. Read a report about an experiment. Identify (if possible) the factor(s) in the experiment and the number of levels for each, the number of treatments, the response variable measured, the design (completely, randomized, blocked, or matched), and whether it was blind (or double-blind). Look at problems 13.1-18.
9. Definitions. A definition is given to you. Supply the term being defined. Fifteen parts. Look at the "key concepts" at the end of each chapter. Definitions are very close to those.

## Notes

• Most of the problems are similar to problems in the textbook. Many of the problems are straight from the textbook.
• You will not need Minitab or Active Stats. Your computer screens should be off during the exam.
• Whenever there are problems that ask for an explanation, be sure you explain. Those parts are worth more points based on the explanation.
• You may want a calculator. There is only one question where a calculator might be useful and you can probably answer it without using one.
• Most of this test is writing, there is very little actual computation or traditional mathematics on the exam.

## Points per problem

 # Pts 1 2 3 4 5 6 7 8 9 Total 12 12 12 12 12 4 10 11 15 100