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Do Now

Do Now. On the days of presidential elections, the news media organize an exit poll in which specific polling stations are randomly selected and all voters are surveyed as they leave the premises. Is this random, convenience, systematic, cluster, or stratified?. Objectives. 15.February.2011

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Do Now

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  1. Do Now • On the days of presidential elections, the news media organize an exit poll in which specific polling stations are randomly selected and all voters are surveyed as they leave the premises. Is this random, convenience, systematic, cluster, or stratified?

  2. Objectives • 15.February.2011 • Students will be able to… • Review for test.

  3. Agenda • Do Now (5 min) • Collect Hwork (5 min) • What will be on the test (5 min) • Review for Test (25 min)

  4. Hwork • Due today, pg. 33, #33 • In “Cardiovascular Effects of Intravenous triiodothyronine in Patients Underdoing CoronyAtery Bypass Graft Surgery” (JAMA, etc.) the authors explain that patients were assigned to one of three groups: (1) a group treated with triidothyronine, (2) a group treated with normal saline bolus and dopamine, and (3) a placebo group given normal saline. The authors summarize the sample design as a “prospective, randomized, double-blind, placebo-controlled trial.” Describe the meaning of each of those terms in the context of this study.

  5. Test • Test will be Thursday (seniors will be at a career fair tomorrow.) • What will it cover:

  6. Review • Complete the problems, we will go over them in 20 min (you don’t need to complete 1-12 on pg. 36 today… but it will be homework.)

  7. Homework • Pg. 36 Cumulative Review Exercises #1-12

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