- Ok, so I didn't consider that I scheduled a test for the day after the Super Bowl....some of you may care about that, some maybe not.
- Monday is truly the day that fits best for our test, but I'll leave it up to you all to vote. You can only vote tonight, I will close the poll tomorrow.
- If people vote more than one time I will ignore the poll results and our test will be Monday.
- We can have the test this Friday, but that will cut out one full day of practice/classwork/review to prepare
- Or we can have the test Monday
- Or we can have the test next Tuesday; if this is the case we'll still finish the unit on Friday and we'll start some "new stuff" next Monday
- Vote for Test Day! Click Me!
Here's Tuesday night's homework if you want to get ahead:
- Since this is our first homework of the third quarter it's going to count double!
- Half HW grade = DO IT
- Other half HW grade = grade it and make corrections!
- If something is wrong don't just mark it wrong--fix it!
- (And use a different color so I can see your corrections)
- Sampling Methods Tuesday HW (Click Me!)
- For #'s 11 and 12 you just have to provide the name of the sampling method (no need for a sentence)
- For 13a name the method (again)
- For 13b I need some WELL WRITTEN, NOT LAZY sentences here--think realistically--what might be a problem with this sampling design?
- Remember, the goal in taking any sample is to collect a sample that represents the population
- For 15a name the sample
- For 15b write me a sentence, thinking similarly to 13b (getting us to consider bias)
- For 13c:
- Sampling Frame = all people/things that could have been sampled
- Sample = the people/things that we actually collected data from
- Population = the "whole group" of people/things we are trying to draw conclusions about based on our sample
- For 27a you need to write a detailed procedure
- This is extra important because many of us underperformed on the midterm in describing how to randomly assign treatments; this SRS is essentially the same way you randomly assign treatments
- For 27b you need to write another procedure!
- Always check your work!
Want to start off Q3 with 3 extra stamps?
- Open the 2019-20 Midterm Scoring and Data Link
- Calculate and interpret the z-score for your RAW SCORE.
- To get your raw score:
- Look up your (curved) score in PowerSchool
- Use the conversion chart (in the link above) to work backwards and see your raw score
- Use the table of summary statistics for the mean and standard deviation for calculating the zscore
- Use your notes for calculating/interpreting z score: You ONLY EARN STAMPS IF you CORRECTLY CALCULATE and INTERPRET the z-score (in context).
What should we take away from this midterm experience?
- The majority of us need to do a better job preparing for the exam; we can't show up and wing it
- The midterm was a practice round--we definitely need to do better in May, and we CAN do better in May
- We're projected at 54.5% qualifying scores; this isn't terrible, but it isn't great. We will strive for great.
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