Weekend HW!

**AP REGISTRATION FORMS/FEES ARE PAST DUE--BE SURE TO GET YOURS IN MONDAY IF YOU HAVE NOT DONE SO!**

You have two responsibilities for homework:

1.) Study for your chapter 20 vocab quiz (start of class Monday)

• We did not do as well as we could have on our chapter 19 quiz--let's be sure to ace this one! The quarter closes in a few weeks, so ace a quiz and boost your average....

2.) Complete the "Chapter 20 Quiz: Testing Hypotheses for Proportions!" worksheet provided in class (or below).

• You are expected to have this completed for Monday even if you were absent. Don't get a 0.
• This is the chapter 20 "math quiz" that we would have taken in class (if not for two snow days); this is a great way to see where you stand with hypothesis testing, and a tool to prepare for Thursday's test
• I may check this as homework, I may collect it and score it as a take home quiz--and I may do things differently for each period....I'll decide Monday....
• That means you need to complete this as if it were a quiz so that if I collect/grade it you earn an A!

Remember, we will have a test on everything confidence intervals and hypothesis tests on Thursday (3/15), no matter what happens with weather! This test will include the content we learn Monday-Wednesday!

• I will be available after school Monday and Wednesday if you have questions....
• The math lab is open Tues/Weds/Thurs A-G period if you need help....
• Or I'm free Tuesday G period (lecture hall) or Wednesday F period (my room)

Here is the chapter 20 vocab list (some words repeated from our chapter 18/19 quiz):

• Statistical Inference
• Confidence Interval
• Also know the process: Conditions + Name Interval, Math (Interval + Formula), Interpret Interval
• Hypothesis Test
• Also know the process: Hypotheses, Conditions + Name Test, Math (Calc Screen + Z Score formula), Conclusion
• Null Hypothesis
• Alternative Hypothesis
• 10% Condition
• Success/Failure Condition 
• Also know why we check it
• Randomization condition
• Also know why we check it
• Standardized Test Statistic
• P-Value
• Alpha Level/Significance Level
• What conclusion do we draw if our p-value is above our alpha level?
• What conclusion do we draw if our p-value is below our alpha level?
• Standard Error
• Margin of Error
• Critical Value
• Meaning of __% Confidence (Interpret Confidence Level)
• What does the "one" in one proportion z test or one proportion z interval refer to?

And here is the "Chapter 20 Quiz: Testing Hypotheses for Proportions!"  worksheet in case you were absent or lost yours.

Finally, if you need some more review with hypothesis testing and confidence intervals, check these AP Stats Guy videos out!

• Unit 5
• Hypothesis Testing = videos 6, 10, 11, 12, 13
• Confidence Intervals = videos 6, 7, 8, 9