Thursday's HW = Intro to Hyp. Tests....
- Page 469: 1, 2, 7, 11a
- For 1, 2, and 11a it's all about writing hypotheses--practice from today's notes
- For #7 start by finding some probabilities--this question is all about thinking and coming up with ideas, not "right answers."
- For 7a, what is the probability you lose two times in a row with a coin flip? If you lose two times in a row do you think this friend can control the outcome?
- What's the probability you lose 3 times in a row? (7b)
- Are you now convinced, after 3 losses in a row, that your friend is controlling the outcome of the coin flip? Why or why not? (7c)
- And for 7d, just think about some probabilities here--there aren't any right answers, just come up with some ideas!
Today's Class Recap:
- First 10 min = ch. 19 vocab quiz
- Ch. 20 Notes:
- Hypothesis Testing: what is the process (4 steps)
- Outlined the process for any hyp. test problem
- Writing Hypotheses:
- Read pages 454 (A Trial As A Hypothesis Test) and 456 (1. Hypotheses), then look at the step-by-step example at the bottom of page 459 or bottom of p. 463 to catch up on this stuff!
- And/or get someone's notes from today--this stuff is a big deal!
- What is the null hypothesis? Alternative hypothesis?
- How can we view a courtroom trial as a hypothesis test--how would we define the null and alternative hypotheses?
- How do we write the null and alternative hypotheses using correct mathematical notation?
- Practice Writing Hypotheses....
- Wrote null, alternative for our "cereal" slide from last night's homework
- Also wrote hypotheses for the two contexts on the "Writing Hypotheses" slide (and glued it in)
Tomorrow we'll get back to our notes on hypothesis testing and start to discuss the conditions and math(ematical logic) behind this stuff. Then, Monday and Tuesday we'll wrap up with our conclusion and some more details!
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