Pediatric researchers carried out a study on various options for treating a child's cough. A sample of 120 children who were ill with an upper respiratory tract infection and their parents...

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Extracted text: Pediatric researchers carried out a study on various options for treating a child's cough. A sample of 120 children who were ill with an upper respiratory tract infection and their parents participated in the study. On the first day, a total symptoms score in points was measured for each child (higher indicating worse symptoms). That night 40 randomly selected children received dextromethorphan (DM, over-the-counter cough medicine), another 40 randomly selected children received a dosage of honey, and the remaining 40 were given no dosage at all. On the second day, the total symptoms score in points was measured again for each child and the improvement score was computed (improvement %3D day 1 score - day 2 score). 1. This study is [ Select ] 2. For this study, the variable improvement score is [ Select ]


Extracted text: Boxplots of Improvement Scores by Group DM Group The provided boxplots compare the improvement scores for the 40 children in each group. Use these boxplots to answer the following three questions. 3. About 25% of the children in the control group (C) had an improvement score of at most [ Select ] points. 4. For children in the honey group (H), the least improvement was about [ Select ] points. 5. For this study, approximately how many of the children in the DM group had improvement scores between 9 and 11 points? [ Select ] Improvement Score 15