STUDY GUIDE ANSWERS Part 2

Tutorial g older modeling vs tutorial g modeling

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Unformatted text preview: lder: g 4.6 4.6 0.66 ; between moderate and large 47.97 6.926 3.59 3.59 0.46 ; moderate 60.77 7.796 7.11 7.11 0.98 ; quite large 52.27 7.229 6.10 6.10 0.84 ; large 52.57 7.229 4. a) 1 2 X1 X2 t.05 s X1 X1 = 4.6 ± 1.99 (1.41); so, 1 - 2 = 4.6 ± 2.8 Therefore, the 95% CI goes from +1.8 to +7.4. b) 1 2 X1 X2 t.01 s X1 X1 = 3.59 ± 2.68 (2.25); so, 1 - 2 = 3.59 ± 6.03 Therefore, the 99% CI goes from -2.44 to +9.62. Chapter 8 1. a) From Table A.4, = 2.8; d = 1/.7 = 1.43. n = 2( d 2 ) = 2( 2.8 2 ) = 2 * 1.96 2 = 2 * 3.84 = 7.7 1.43 Therefore, 8 subjects would be needed in each group to have sufficient power....
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This note was uploaded on 08/18/2013 for the course STATS 101 taught by Professor Wallacesherman during the Fall '12 term at Dunwoody.

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