Question

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-bar_{2= 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.}

Show all work and calculations.

Answer 1