Question: Table 12.16 shows a random sample of observations on children under 10 years of age, each observation being the IgA immunoglobulin level measured in international

Table 12.16 shows a random sample of observations on children under 10 years of age, each observation being the IgA immunoglobulin level measured in international units from a large number of blood samples, and the population is studied in blocks in terms of age groups (the upper value is not included) as I: (1 to 3), II: (3 to 6), III: (6 to 8), and IV: (8 to 10). Test for the hypothesis of equality of true medians for IgA level in each block (age level), (a) with the 5% level and (b) with the 1% level of significance. Compare the results obtained.
Table 12.16 IgA Immunoglobulin Level of Children

75 63 80 45 7 39 7 32 00 3 2 9698 1754 3

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