2201_Quiz3A_KEY

2201_Quiz3A_KEY - Revised 01/19/2010 2201_Quiz3A_KEY.docx...

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Unformatted text preview: Revised 01/19/2010 2201_Quiz3A_KEY.docx EXST 2201 Quiz 3A KEY Answers Tips Answers Tips 1A. Independent samples. 5A. True 1B. Independent samples. 5A. A = Between samples B = Within samples 1C. Paired samples. 5C. SSModel + SSError 2A. µd = 0, µd < 0 2B. –2.30 1. BEFORE = little AFTER = big 2. Little – big < 0 t0 = 5D. MSModel / MSError 5E. A = 40, B = 4.24 6A. False −4.78 − 0 6.24 9 6B. 1, 3 and 5 2C. 0.025 7A. Two-sample t-test of the mean. 2D. Yes. Reject. 7B. µ1 – µ2 = 0, µ1 – µ2 ≠ 0 3A. µ1 – µ2 = 0, µ1 – µ2 ≠ 0 7C. 2.306 t0.05 3B. (–3125, 325) 28,900 − 30,300 ± 7D. –3.80 2.145 3C. No. 23002 21002 + 15 15 Do not reject. 7E. (–1307, –321) 2 ,8 t0 = 458.52 473.7 2 + 9 10 ( 3669 − 4483) ± 2.306 458.52 473.7 2 + 9 10 4A. 3 or more 4B. F distribution ( 3669 − 4483) 7F. Yes. 4C. Never 4D. µ1 = µ2 = µ3 4E. Dependent samples. Page 1 of 1 Reject ...
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