Quiz Tomorrow--READ THIS POST

No weekend homework! (Unless you have to complete anything below.

The extra credit homework, Weds/Thurs review/practice quiz hw, and any other CI homework will be check Monday in class.

1.) I will accept any confidence interval homework that you have missing tomorrow for full credit.

• If you were out today here's the free response and MC classwork today--we did this in groups, no new stuff (key below):
• AP FR and MC Classwork (Thurs, 2/27)

2.) Thursday's HW = Review for Quiz!

• Tonight please complete on the "Confidence Intervals for Proportions: (Practice Quiz)" provided in class yesterday or linked below.
• CI for Proportions Practice Quiz! (click me so you can study!)
• ALWAYS CHECK YOUR ANSWERS!
• If you answered all of these correctly you're in great shape for tomorrow's quiz!
• Here's the key:
•  CI for Proportions Practice Quiz KEY (click me and check yo' work!)

3.) QUIZ Friday!

• Tomorrow's quiz will NOT be the full period...
• There is NO VOCAB SECTION for tomorrow's quiz
• We will take the ch. 19 vocab quiz to start class on Monday or Tuesday (either works for me)
• Tomorrow's Quiz = 23 minutes
• 4 AP MC (2.25 min each)
• 1 AP FR (13 minutes)

4.) STUDY!

• Do tonight's homework
• Look over the 2017 FR you completed with the sub and score it!
•  2017 Scoring Rubric
• Check your answers to the free response (about dog owners) from class today!
•  a.) About 95% of confidence intervals created from same size samples of households will contain the true proportion of households in the county that own at least one dog. 
• b.) The interval (0.298, 0.536) does not provide evidence that the proportion of dog owners in its county is different from the claimed national proportion of 39% because 39% is inside the interval.
• c.) Equation: 0.119 = 1.96sqrt(.417*.583/n); n = 66 households
• Note: .119 = ME and 0.417 = p-hat
• If you use p-hat = 0.5 you get a "P" for this section and n = 68
• Try the questions on the back!
• 1.) C
• 2.) D
• 3.) z* = 1.501; C. Level is somewhere between 80% and 90% confidence
• You should be able to solve for z*, then look at the table--we'll talk about how to get the exact confidence level at some point in the future since there isn't really anything close to the z* you get in the table
• Do the extra credit HW! 
• Pages 447-449:
• 9 (interpret interval)
• 13 (full interval process, interpret c. level, use interval to test a claim)
• 33 (finding sample size)
• 37 (find c. level)