Questions: STATISTICAL PRACTICE Homework Question 512.2.40 HW Score: 50%, 3 of 6 points Does a teaspoon of honey before bed really calm a child's cough? To test this folk remedy, pediatric researchers carried out a designed study involving a sample of 105 children who were ill with upper respiratory tract infections. The children, aged 2 to 18 years, were randomly assigned on a single night to one of three treatment groups. One group received a dose of buckwheat honey before bedtime. Unknown to the parents and children, a second group received a dose of dextromethorphan (DM)—an over-the-counter cough medicine while others received no treatment at all. The third group of children received a sweet-tasting placebo. (Also, the honey group actually received a darker type of honey, while the other treatment groups received lighter-colored honeys to help mask any differences.) The next day, parents rated their children's cough symptoms, and the improvement in total cough symptoms score was determined for each child. The data (improvement scores) for the study are shown in the table attached below. Construct a dot plot of the improvement scores for the honey group. a. Construct a dot plot for the coughing improvement scores for the children in the honey dosage group. Choose the correct dot plot below. [Four dot plot options shown] b. What coughing improvement scores occurred most often in the honey dosage group? Type a whole number. Use a comma to separate answers as needed. Clear all Check answers GO BLUE HENS

Transcript text: STATISTICAL PRACTICE Homework Question 512.2.40 HW Score: 50%, 3 of 6 points Does a teaspoon of honey before bed really calm a child's cough? To test this folk remedy, pediatric researchers carried out a designed study involving a sample of 105 children who were ill with upper respiratory tract infections. The children, aged 2 to 18 years, were randomly assigned on a single night to one of three treatment groups. One group received a dose of buckwheat honey before bedtime. Unknown to the parents and children, a second group received a dose of dextromethorphan (DM)—an over-the-counter cough medicine while others received no treatment at all. The third group of children received a sweet-tasting placebo. (Also, the honey group actually received a darker type of honey, while the other treatment groups received lighter-colored honeys to help mask any differences.) The next day, parents rated their children's cough symptoms, and the improvement in total cough symptoms score was determined for each child. The data (improvement scores) for the study are shown in the table attached below. Construct a dot plot of the improvement scores for the honey group. a. Construct a dot plot for the coughing improvement scores for the children in the honey dosage group. Choose the correct dot plot below. [Four dot plot options shown] b. What coughing improvement scores occurred most often in the honey dosage group? Type a whole number. Use a comma to separate answers as needed. Clear all Check answers GO BLUE HENS