Refer to the Archives of Pediatrics and Adolescent Medicine (Dec. 2007) study of honey as a children's cough remedy, Exercise 2.40 (p. 51). The data (cough improvement scores) for the 33 children in the DM dosage group and the 35 children in the honey dosage group are reproduced in the next table. The researchers want to know if the variability in coughing improvement scores differs for the two groups. Conduct the appropriate analysis, using α = .10. If the preferred treatment is the one with the smallest variation in improvement scores, which treatment is preferable?

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Honey Dosage: 12 11 15 11 10 13 10 10 6 10 8 11 12 12 9 13 4 15 16 9 14 5 12 8 12 10 8 9 11 15 10 15 12 DM Dosage: 4 9 12 7 10 13 9 4 9 12 10 11 6. 12 4 12 3 6. 8 12 4 4 4 10 15 9 13