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given: variance = 102.5579, standard deviation = ( 1 0 2 . 5 5 7 9 ) Sample(CPSSW8)=99, E[CPSSW8]=18.6656 question : Test the null hypothesis

given: variance = 102.5579, standard deviation = (102.5579) Sample(CPSSW8)=99, E[CPSSW8]=18.6656

question : Test the null hypothesis that the average earnings in theCPSSW8data set is $20/hour. Use a two-sided test with a 5% significance level.

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