Question : A computer system has 6 I/O channels and the system personnel are reasonably certain that the load on channels is balanced. If X is random variable denoting the index of the channel to which a given I/O operations is directed , that its pmf is assumed to be uniformly distributed. Out of N=150 I/O operation onserved, the number of operations directed to various channels were: n_{0} = 22 ; n_{1} = 23 ; n_{2} = 29 ; n_{3} = 31 ; n_{4} = 26 ; n_{5} = 19 Test the hypothesis that the load on channels is balanced at 5 percent level of significance. Solution I have used the [tex]\chi[/tex]^{2} = (O-E)^{2} / E where O - obsevred and E is expected Is this correct or should i be using some other method