## Exam #3 Review

November 13, 2013

For Exam #3 you need to be prepared to answer questions on the following topics.

Ch. 4 Probability

- Define
**Experiment**,**Event**,**Independent Events, Mutually Exclusive Events** - Define and calculate
**Sample Space** - Build and interpret
**Joint Probability Tables**

Ch. 6.2 Normal Distribution

**Z-Scores**– what are Z-scores, how are they calculated, how are they used.- Know how to use the
**Z-score look up table**(page 193 or 794)**.** **Calculating probabilities using the normal distribution curve.**

Ch. 8 Statistical Inference

**Point Estimate****Interval Estimate****Confidence Intervals**- Use
**equation 8.1**(p. 260) to determine confidence intervals when standard deviation is.**known** - Use the
**t-statistic**and understand how to use look up table with**degrees of freedom**(p. 795) - Use
**equation 8.3**(p. 269) to determine confidence intervals when standard deviation is.**unknown** - Know how to estimate
**sample size**using**equation 8.7**(p. 281)

Ch. 9 Hypothesis Testing

**Null Hypothesis****Alternative Hypothesis****Rejection Region****Type I and Type II Error****p-value**- Use of
**z-test**and**t-test**in hypothesis testing

Like previous exams I will provide any necessary equations and/or look up tables (no need to memorize). But, you should be able to identify terms and what they represent.