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Q4. A leather company wants to know if three group of workers have different salaries. Apply Kruskal-Wallis rank test regarding similar values of medians.

Q4. A leather company wants to know if three group of workers have different salaries. Apply Kruskal-Wallis rank test regarding similar values of medians. Group 1: 23000, 41000, 54000, 66000, and 78000 Group 2: 45000, 55000, 60000, 70000, and 72000 Group 3: 18000, 30000, 34000, 40000, and 44000

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