STUDY GUIDE ANSWERS Part 2

Chapter 7 1 younger modeling vs tutorial 2 n1 52 n2 45

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Unformatted text preview: deling vs. Tutorial 2 n1 52; n2 45; s1 6.69; s 2 7.19; s1 44.76; s 2 2 51.70 Pooled-variances t test: s2 p 2 ( n1 1) s1 ( n2 1) s 2 2 n1 n2 2 X1 t s 2 p df = 95, X2 1 n1 (52 1) 44.76 ( 45 1) 51.70 52 45 2 36.74 32.14 1 47.97 52 1 n2 4.6 1.988 1 45 4.6 1.41 X1 2 s1 n1 47.97 3.26 = .05, two-tailed tcrit= 1.99 < 3.26; therefore the difference is significant Separate-variances t test: t 4557.56 95 X2 s2 2 n2 4.6 4.6 44.76 52 51.70 45 2.01 Older: Modeling vs. Tutorial 2 n1 20; n2 30; s1 8.51; s 2 7.29; s1 Po...
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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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