- Tomorrow we will work (in groups) in class to develop the formula for a one-proportion z interval. Please stop by to grab this assignment/investigation if you have not done so.
- You should complete this assignment over your long weekend
- Watch videos about the formula for a one proportion z interval if you need some more help/explanation!
- You will be responsible for knowing/understanding this stuff--the more effort you put into the classwork you missed, the better prepared you will be!
- Please get a copy of the notes from a classmate as well!
- Over the long weekend we have an assignment that I may collect and grade as a take home quiz. Please stop by tomorrow morning for a copy if you do not have one already.
- Another option: Juniors, if you would like, please feel free to attend period H (AP Stat) tomorrow. You are scheduled to have lunch at 11:35 to 2:10, which is H period. Of course if you're hungry and tired after a long day then EAT! Don't feel obligated, but this is an option for you.
Thursday HW:
- Pages 446-448: 5, 9, 21ab, 23bc
- For 5 your job is to determine which of the interpretations is correct, if any, and provide a bullet explaining why (like today's slide)
- For #9 interpret the given confidence interval!
- For 21a use your calculator to find the interval and copy your calculator screen as your math work, then interpret your interval for part b
- Please also write down the values of x, n, and p-hat
- For 23bc, same--part b = math = calculator screen, c = interpret
- Please also write down the values of x, n, and p-hat
- *Remember to always round n to the nearest whole number or you'll get an error on your calculator!
Today's Class Recap:
- Stamp = x, n, and p-hat
- Ch. 19 Notes
- What is the process for any confidence interval question?
- Conditions: what are they?
- Discussed a "tweak" for the success/failure condition
- Math: what do we show?
- Also added notes on n, x, and p-hat
- Interpret
- How do we interpret a confidence interval?
- Provided a template for interpreting intervals in our notes
- Interpreted an interval and identified x, n, p-hat in our notes for a given context (3 slides given yesterday)
- Then, discussed which interpretation (also in those 3 slides) a-e was correct and what issues there were with the incorrect interpretations
- Learned how to create a one proportion z interval using our graphing calculator (tomorrow we'll investigate this formula)
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