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Prob._8.23 - 8.23 1 Hypothesis 3 H03 — 0 b-H1IIJ1'1J2>...

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Unformatted text preview: 8.23 1. Hypothesis 3. H03 1-11-1125— 0 b-H1IIJ1'1J2> 0 _ 3 2. N1 and N2 both ‘< 30 —> t-test (tight-tailed) 3. 06 =.05 df= N1+ N2-2 =13 8. 1105,13 = 1.771 5(12522)2 +8(19548)2 4. Sp2 =7 13 a. Sp2 = 295,461,296. 96540 — 85991 b. tcalc = 295461296 + 295461296 6 9 5.16....c = 1.16 120m: 1.771 =1.16- a.tcalC < tom do not reject Ho 6. The new route is not better ...
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