At a 05 level of significance the Department of Transportati

At a .05 level of significance, the Department of Transportation claims that there is no difference between the variation of federal highway money distributed to the northeastern states and the variation of federal money distributed to the central states. The standard deviation for 11 northeastern states is 0.81 and the standard deviation for 12 central states is 0.35. What is the test value?

Solution

Critical Value
The Value of |F | at LOS 0.05 with d.f F(n1-1,n2-1)=F(10,11) is 3.526 ( Two Tailed Test)