Official 2020 AP Stats Exam College Board Lesson #17 Understanding and Interpreting the P-value 4_28_2020


Hi all! 



That was a great lesson from Luke Wilcox!  Here are my take-aways and teacher comments:



Reminders

·         4 weeks of lessons and preparation for the exam is being taught/reviewed (recorded) M-F: 2-2:45 PM in these YouTube Lessons 😊  https://www.youtube.com/watch?v=Fb3q22JgWI4&list=PLoGgviqq4845u-QDW3bikMhC4uQsuYDpy&index=25



  • Lessons: April 6-10: Units 6-7 taught first because many schools either didn’t get to these entirely or at all (we did get through most of this); April 13-April 24: Units 1-5
  • NEW:  EXAM POINTERS FOR DOING WELL ON THE 2020 EXAM: 4/27—5/8.   5/4, 5/5 AN ACTUAL 2020 PRACTICE TEST!!😊
  • AP Stats Exam Friday May 22 from 2-2:45 EST
  • All resources available at Statsmedic.com/youtube
  • If you need a device take the Exam go to cb.org/tech



Last Night’s homework example:

  • This is a nice review of why the 10% condition for Independence is necessary for probability calculations



#1 “Joy Milnes can smell Parkinson’s” example:

  • Nice run through of a claim, statistic, some evidence, convincing evidence
  • Nice explanation of an interpretation of an estimated p-value from a dot plot



#2 “AP Exam review with YouTube” example:

  • Nice review of Binomial: BINS and M = np formula
  • Nice run through of a claim, statistic, some evidence, convincing evidence
  • Nice explanation of an interpretation of a p-value arrived at using 1- binompdf(n=80, p=0.3, x=31) from a population distribution



#3 “Mr. Wilcox preparation needed for the AP Exam” example:

  • Nice explanation H0 and Ha  and the definition for M in the State step of a four step process.
  • Nice run through of a claim, statistic, some evidence, convincing evidence
  • Nice explanation of an interpretation of a p-value from a sampling distribution for X-bar from a test statistic t = -0.72



#4 “Reese’s Pieces/Skittles” example:

  • Nice run through of a claim, statistic, some evidence, convincing evidence
  • Nice explanation of an interpretation of a p-value from a sampling distribution for p-hat1 - p-hat2 from a test statistic z = 2.85 for a two-sided (not equal to) test

#5

  • The NULL HYPOTHESIS has the claim assumed to be true

#6

  • The P-value is a conditional probability



Try the homework about “trees in a forest” if you can for tomorrow’s lesson 😊



Please email me any time with any question, comments, thoughts.



Take care!!

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