Refer to the Journal of Geography's published rankings of regional atlas theme topics, presented in Exercise 14.107. In addition to high school teachers and university geography alumni, university geography students and representatives of the general public ranked the 12 thematic topics. The rankings of all four groups are saved in the ATLAS2 file. A MINITAB analysis comparing the atlas theme-ranking distributions of the four groups is provided below.

a. Locate the rank sums on the printout.
b. Use the rank sums to find the Friedman Fr-statistic.
c. Locate the test statistic and the associated p -value on the printout.
d. Conduct the test and state the conclusion in the words of the problem.

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Friedman Test: RANK versus GROUP blocked by THEME S-0.93 DF-3 P-0.819 S. 1.08 DF-3 P-0.782 (adjusted for ties) Sum LTD o1 GROUPN Est Median Ranks 5.1250 27.0 6.1250 32.5 5.6250 29.0 6.1250 31.5 12 12 12 12 Grand median5.7500