TOM302 HW CH11

TOM302 HW CH11 - TOM302 CH11 HW. 11.4 Step1 H 0 : 1 = 2 , H...

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Unformatted text preview: TOM302 CH11 HW. 11.4 Step1 H 0 : 1 = 2 , H 1 : 1 2 Step2 Level of significance:0.10 Step3 Type of test: t-test Step4 Critical value = t=1.812 Step5 Reject Step6 H 0 if the calculated t<-1.812 or >1.812, otherwise do not reject. (5 - 1)(1.4) 2 + (6 - 1)(1.8) 2 7.84 + 16.2 = = 2.67 5+6-2 9 5.9 - 4.2 - 0 1.7 t= = = 1.736 0.979 1 1 2.67( + ) 5 6 s2 = p Step7 Do not reject Step8 At the 0.10 level, the average is not the same. 11.11 Step1 H0 H 0 : 1 2 H 1 : 1 < 2 Step2 Level of significance:0.05 Step3 Type of test: t-test Step4 Critical value: -1.725 Step5 Reject Step6 H 0 if the calculated t<-1.725. otherwise do not reject. (11 - 1)(2.1) 2 + (11 - 1)(1.8) 2 = 3.825 11 + 11 - 2 (31.3 - 33.2) - 0 t= = -2.278 1 1 3.825( + ) 11 11 s2 = p Step7 Calculated test statistic falls in rejection region, reject H0. Step8 At the 0.05 level, less fat on the average is valid. Step9 p-value P(t<-2.278) is between 0.01 and 0.025 ...
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TOM302 HW CH11 - TOM302 CH11 HW. 11.4 Step1 H 0 : 1 = 2 , H...

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