Question: please explain steps 13. A recent study claimed that at least 15% of junior high students are overweight. In a sample of 160 students, 18

please explain steps

13. A recent study claimed that at least 15% of junior high students are overweight. In a sample of 160 students, 18 were found to be overweight. At a = 0.05, test the claim. (7 points)

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