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Chapter 10 Test

Chapter 10 - Day 8

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Questions to be Sure to Include
  • A multiple choice question that has the students thinking about affects of sample size and critical value on margin of error. 

  • A multiple choice question where students have to identify the confidence interval from a formula representation.

  • A multiple choice question having students connect a confidence interval to a significance test conclusion.

  • On the free response, you should have two questions. One question asking students to do a confidence interval for a mean, and another one for either a mean of differences or difference of means. Use old AP questions.

  • To save time on the free-response questions, consider having "assume all conditions have been met" if you are concerned about them finishing the assessment in one sitting. 

  • Have some follow up questions such as "does the confidence interval support they hypothesis?" or asking what would happen if an adjustment was made to the problem that would affect the conditions. 

Tips to Give Your Students
  • Close reading and careful writing are critical to your success this year.

  • Be sure to answer all parts of each question.

  • There are a lot of formulas in this Chapter. Don’t memorize them.  Understand them. Use the (general formula, specific formula, plug numbers in, find answer) approach.

  • When reading a free response question, ask yourself “Is this context about a proportion or about a mean”. Your notation, conditions, and formulas depend on the answer to this question. Pro tip: variables that are categorical can be measured in proportions and variables that are quantitative can be measured with means.

  • Always ask yourself how many samples are in the problem.

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