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Marijuana use A 20072008 survey of teens conducted by the

Statistics Through Applications | 2nd Edition | ISBN: 9781429219747 | Authors: Daren S. Starnes ISBN: 9781429219747 133

Solution for problem 9.3 Chapter 9

Statistics Through Applications | 2nd Edition

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Statistics Through Applications | 2nd Edition | ISBN: 9781429219747 | Authors: Daren S. Starnes

Statistics Through Applications | 2nd Edition

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Problem 9.3

Marijuana use A 20072008 survey of teens conducted by the Partnership for a Drug-Free America found that 33% of 6511 U.S. teenagers surveyed reported use of marijuana. Th e report states, With 95% confi dence, we can say that between 31.4% and 34.6% of all American teenagers have used marijuana.4 Explain to someone who knows no statistics what the phrase 95% confi dence means in this report

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Memory and Forgetting External events Sensory memory Working memory (short term) Long term memory Sensory memory holds the words herd for a few short seconds and lets you register them. Researchers believe that there is a sense memory for each sense. (Auditory and visual are the most studied) Short-term memory is the active processing of information. It associates new and old information/solves problems Duration: longer than in sensory memory, rehearsal helps. Forgetting is decay, if not rehearsed it just fades away. Interference is being replaced by new info. Capacity: 7+/- rule (4+/- 1) at one point you can take on about 5-9 facts. Capacity can be increased by chunking- breaking things up into meaningful pieces for yourself Short term memory to working memory- they are not e

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Chapter 9, Problem 9.3 is Solved
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Textbook: Statistics Through Applications
Edition: 2
Author: Daren S. Starnes
ISBN: 9781429219747

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