TOM302 HW CH11 - TOM302 CH11 HW 11.4 Step1 H 0 1 2 H 1 1 2...

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TOM302 CH11 HW. 11.4 Step1 2 1 1 , 2 1 0 : : μ μ μ μ = H H Step2 Level of significance:0.10 Step3 Type of test: t-test Step4 Critical value = t=1.812 Step5 Reject 0 H if the calculated t<-1.812 or >1.812, otherwise do not reject. Step6 736 . 1 979 . 0 7 . 1 ) 6 1 5 1 ( 67 . 2 0 2 . 4 9 . 5 67 . 2 9 2 . 16 84 . 7 2 6 5 ) 8 . 1 )( 1 6 ( ) 4 . 1 )( 1 5 ( 2 2 2 = = + - - = = + = - + - + - = t s p Step7 Do not reject 0 H Step8 At the 0.10 level, the average is not the same. 11.11 Step1 2 1 1 2 1 0 : : μ μ μ μ < H H Step2 Level of significance:0.05 Step3 Type of test: t-test Step4 Critical value: -1.725 Step5
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Reject 0 H if the calculated t<-1.725. otherwise do not reject.
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