How can I study?
- Use your Barron's review guide (passed out today in class)!
- CI = p. 289
- Hyp. Tests = p. 333
- First you can skim through the summary of each topic (starting on the page numbers above)
- This book lumps all types of intervals/tests together, so remember that we are only focusing on one proportion z intervals and one proportion z tests for now
- Then--practice problems!
- After the summary "notes" you can find a bunch of practice MC and FR to do in the book, followed by the answers to each question WITH explanations of those answers!
- This is an amazing/awesome resource--use it!
- Finish the 6 MC questions we started in class! Here's the key....
- E
- D
- E
- A
- A
- D
- Do the "AP Stat Test Review: Ch. 19, 20, 21" worksheet provided below, then check your answers (also below!)
Come ready! Monday's test WILL be a challenge--it'll (of course) include AP MC and some AP FR!
If it helps, here's a list of what you need to know:
- What should I know about Hypothesis Testing
- What is the (4 step) process for any hypothesis test?
- What is a null hypothesis? Alternative hypothesis?
- What is the general logic of a hypothesis test--what are we trying to do?
- How can I write a null and alternative hypothesis for a given context?
- How do we check the conditions for a one proportion z test?
- Which condition differs for a one prop z test v. a one prop z interval?
- Why do we check this condition differently for each process?
- What math work do we need to show for a one proportion z test?
- What are we trying to do mathematically?
- How do we know if a result is statistically significant?
- How can we calculate a p-value?
- Watch the AP Stat Guy Video about the logic of hypothesis testing!
- What is a p-value?
- How can we calculate a p-value?
- Check out the AP Stat Guy video about p-values!
- How do we write conclusions for a hypothesis test based on a p-value and alpha level?
- Linkage: connect pvalue to alpha (higher or lower)
- Decision: reject or fail to reject Ho
- Context: there is or is not evidence of the Ha
- What is a one tailed test? A two tailed test?
- How do pvalues of one and two tailed tests relate?
- What is a Type I error? A Type II error?
- How can we define a Type I or Type II error in context, AND identify a consequence of each type of error?
- What are alpha and beta in relation to the types of error?
- How do alpha and beta relate?
- How can we decrease the probabilities of both types of error?
- What is power? How is power calculated?
- How can we increase the power of a test?
- What do I need to know about confidence intervals?
- When/why do we create a confidence interval?
- What symbol is a sample proportion/%? A population proportion %? (statistic v. parameter)
- How do we identify/calculate x, n, and p-hat for a given context?
- What wording in a question suggests I have to create a CI?
- How do I find the critical value for a given C. Level using...
- t-table
- invnorm(
- What is the full CI process?
- How do I check conditions for a one prop z interval?
- How do I do the math with my calculator and show the supporting formula?
- How do we interpret the meaning of a confidence interval?
- How can we use our confidence intervals to assess some claim? (like 13d from the weekend hw)
- What is ME?
- How can we calculate margin of error given a sample size, C. Level, and p-hat?
- How can we calculate sample size for a given ME?
- How does changing n affect the ME? the width of an interval?
- How does changing C. Level (and as a result, z*) affect the ME? the width of an interval?
- How can we find the value of p-hat (a point estimate) only given an interval?
- How can we find the ME only given an interval?
- What does it mean to say "__% confident?"--how can we interpret the meaning of a confidence level?
- If you have any questions, things you're confused about, or just want a deeper understanding, take the time this weekend to use your resources!
- Watch AP Stat Guy videos 6-9 in Unit 5 for some help!
- Use Khan Academy--this is aligned with AP Stat!
- Linked on the right WITH a course code
- Google stuff--anything about one proportion z intervals!
- Barron's book
- Read above!
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