Wed nes day HW!

Wednesday HW:
(Period A: I think I rushed into the conclusion too quickly this morning, so let's hold off on our homework with conclusions until Thursday. Tonight let's focus on the "math" and understanding our p-values.)

Page 470-472: 3, 9, 11cd, 12abcd

• 3 = understanding what a p-value represents
• 9 = find errors!
• 11cd = math and interpret p-value
• 12abcd = hypotheses, conditions, math, interpret p-value
• Interpret PValue Template:

• If ____(Ho is true, in context)_______, there is a   pvalue   % chance that we would get a sample statistic (p-hat) of   p-hat   or larger/smaller (pick one).

Thursday's HW:

• Please complete the full hypothesis test process for each of the three context below:
• Hypotheses 
• Conditions 
• "Math" 
• Conclusion
• You will get some very high/low (far from 0) z scores and some p-values that are = 0...this is because I took real studies for these rather than using "cookie cutter" test questions
• This should be reflected in our sketch!
• Remember, the "shaded region" represents the p-value, so if the p-value is 0 then nothing should be shaded!
• #1 is very much like our cereal example from class....
• If an alpha level (aka significance level) is not given, pick one! (1%,5%, or 10%)

Today's Class Recap:

• Stamp = CI review
• Back to ch. 20 notes....
• How do we determine if a sample statistic is "statistically significantly" different from the value in our null hypothesis?
• Calculating z scores (standardized test statistic)
• Calculating p-values
• How can we use our graphing calculator? How do we show the math work on our AP exam?
• What is a p-value? How can we interpret p-value in context?
• What is an alpha/significance level? (back to #7)....:
• How can we write a conclusion for a hypothesis test (comparing p-value to alpha level)?
• Provided a template for writing our conclusions....