Dear royhaas

Thanks for responding.

I already proceeded with the problem as follows:

**1.** I express the values in terms of ranks.

**2.** Compute the sum of ranks for each method separately ( they are 23, 59, 38 respectively).

**3.** Compute corresponding H test statistic. H is 6.54.

**4.** From the chi-square table, the critical value for ?=0.05 significance level with df = k-1 =2 is 5.991

From here we can conclude:

*as 6.54 > 5.991, we reject the null hypothesis.*
I can do the above thing. But the problem ask for some other thing. How can I compare the Three method so that I can decide the best one?

Please compute for me, if possible.

regds.

mytechassist1