2201_Quiz2A_KEY

2201_Quiz2A_KEY - Revised 2201_Quiz2A_KEY EXST 2201 Quiz 2A...

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Revised 01/14/2010 2201_Quiz2A_KEY.docx Page 1 of 1 EXST 2201 Quiz 2A KEY Answers Tips 1A. Bell shaped 1B. 30 1C. 0.686 1D. 0.3859 0 30.2 30 0.29 0.686 z = = 1E. 0.8078 0 30.6 30 0.87 0.686 z = = 2A. 59.2 2B. 95% 1–0.05 = 0.95 2C. (58.3, 60.1) 3.8 59.2 1.65 45 ± 2D. (58.4, 60.0) 3.8 59.2 1.65
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