Is honey a cough remedy? Pediatric researchers carried out a designed study to test whether a teaspoon of honey before bed calms a child s cough and published their results in Archives of Pediatrics and Adolescent Medicine (December 2007). (This experiment was first described in Exercise 2.31, p. 62.) A sample of 105 children who were ill with an upper respiratory tract infection and their parents participated in the study. On the first night, the parents rated their children s cough symptoms on a scale from 0 (no problems at all) to 6 (extremely severe) in five different areas. The total symptoms score (
- a. Identify the type of experimental design employed. What are the treatments?
- b. Conduct an analysis of variance on the data and interpret the results.
- c. Check the validity of the ANOVA assumptions.
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Statistics for Business and Economics (13th Edition)
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