In two independent samples, x-bar1 = 165.0, s1 = 21.5, n1 = 40 and x-bar2 = 172.9, s2 = 31.3, n2 = 32. Using the 0.10 level of significance, test H0: μ1 ≥ μ2 versus H1: μ1 < μ2.
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