Refer to the Archives of Pediatrics and Adolescent Medicine (Dec. 2007) study of honey as a children's cough remedy, In addition to the two experimental groups of children with an upper respiratory tract infection-one which was given a dosage of dextromethorphan (DM) and the other a similar dose of honey-a third group of children received no dosage (control group). The cough symptoms improvement scores for the children are reproduced in the accompanying table and saved in the HONEYCOUGH file. Conduct a nonparametric test to compare the distributions of cough improvement scores for the three dosage groups. Use α = .01
Based on Paul, I. M., et al. "Effect of honey, dextromethorphan, and no treatment on nocturnal cough and sleep quality for coughing children and their parents." Archives of Pediatrics and Adolescent Medicine, Vol. 161, No. 12, Dec. 2007 (data simulated).

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