Friedman Test Critical Values. Calculate degrees of freedom df k 1 where k number of groups df 3 1 2 4. State decision rule we look up our critical value in the chi square table and find a.
To illustrate the friedman rank test return to the fast food chain study from section 11 2 in which six raters blocks evaluated four restaurants groups. If the obtained f value from step 6 is larger than the critical value of f then reject h0. Step 7 determine the critical value of f by looking at the table of critical values for friedman s test f k 3 n 12 α 05 8 67 step 8 compare the obtained f and the critical f values to determine whether to retain or reject the null hypothesis.
Reject the null hypothesis if the calculated f value is larger than the fm critical value.
To illustrate the friedman rank test return to the fast food chain study from section 11 2 in which six raters blocks evaluated four restaurants groups. If the obtained f value from step 6 is larger than the critical value of f then reject h0. Figure 1 friedman s test for example 1. Upper critical values for the friedman test k treatments and b blocks notes 1.
