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Mathematics, 04.12.2019 07:31 NLMB2614
Arandom sample of n1 = 49 measurements from a population with population standard deviation σ1 = 3 had a sample mean of x1 = 12. an independent random sample of n2 = 64 measurements from a second population with population standard deviation σ2 = 4 had a sample mean of x2 = 14. test the claim that the population means are different. use level of significance 0.01.what distribution does the sample test statistic follow? explain.
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