TEST TOMORROW!

Tomorrow is a big day, and this is a big weekend upcoming. This is your last chance to boost your grade with some great test scores!

Here's a breakdown of tomorrow's test:

• 2 free response, 7 multiple choice, 5 true false
• Describe Type I and/or Type II error and a consequence
• Conduct a hypothesis test (hypotheses, conditions, math, conclusion)
• Interpret p-value (in context)
• Create a confidence interval (conditions, math, interpret)
• Interpret the meaning of a confidence interval
• Interpret the meaning of a confidence level
• Find margin of error
• Know how alpha and beta affect each other, and how changing alpha/beta affects power
• Find sample size given margin of error
• Find the confidence level associated with a given alpha level (use the table we created in our notes yesterday!)
• Interpret margin of error
• Know how changes in confidence level (z*) and sample size affect the margin of error and the width of an interval
• Know how alpha and beta (probabilities of Type 1, Type 2 error) are affected by increasing sample size
• Know how to calculate power
• Study your (40 point) chapter 19 quiz and your hypothesis test quiz from earlier this week! 
• Also, review your Type I/II error, alpha/beta/power notes (anything we covered this week)

Here are the answers to today's multiple choice questions in case you're using them to study!

• True/False Worksheet

1. False
2. True
3. False
4. True
5. True
6. D
7. (#15 about the mayor of a large city) E
8. (Corn rootworm question) A
9. (#10; when performing a test...) D+

• AP Statistics Exam: Multiple Choice Section Worksheet
• (A 95% confidenc interval of the form...) C
• (USA Today reported that speed skater...) E
• (Courtney has constructed a cricket out of paper...) D
• (A survey was conducted to determine...) C
• (A certain county has 1,000 farms...) A
• (Suppose that public opinion in a large city...) D

Here's an extra credit homework assignment you can do--due Monday (do it on separate paper, not in your notebook)--if you like!

• Page 491: 1, 3, 7, 17

And lastly, we know we have a MAJOR assignment this weekend, reviewing our midterm exam! Check back tomorrow for a blog post all about that (though we discussed it today in class)...