A random sample of n1 = 12 in Chicago gave the following information concerning violent crime rates (per million): x-bar1 = 3.45 and s1 = 0.81. Another random sample of n2 = 15 in Las Vegas gave the following information concerning violent crime rates: x-bar2= 3.81 and s2 = 0.95. Do the data indicate that violent crime rate in Chicago is higher than that in Las Vegas? Use a 5% level of significance.
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