Assume that a Kruskal-Wallis test is being conducted to determine whether or not the medians of three populations are equal.The sum of rankings and the sample size for each group are below. 
What is the critical value for this test using a 0.10 level of significance?
Definitions:
Cuticle
The protective layer found on the outer surface of leaves, stems, and other organs of plants.
Collenchyma
A type of plant tissue characterized by its living, elongated cells with unevenly thickened walls, providing support and flexibility.
Water and Minerals
Essential components for biological organisms, facilitating metabolic processes and structural functions.
Companion Cells
Plant cells that are intimately associated with sieve tube elements in the phloem and help in the transport of substances essential for the plant's metabolism.
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