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12. . A random sample Of 400 Old men revealed 100 like hybrid cars, while 200 young men revealed 20 like hybrid cars , Calculate

12. . A random sample Of 400 Old men revealed 100 like hybrid cars, while 200 young men revealed 20 like hybrid cars , Calculate 2 value for two sample test of proportion : * (4 Points) U 2: 2.21 1;.) Z: 3.31 1;; Z: 4.41 1;) Z= 1.11

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