Are there differences in the efficacy of duct tape versus cryotherapy in the treatment of the common wart (Arch Pediatric & Adolescent Medicine 156: 971–974; Focht et al., 2002). To answer this question, 61 participants between the ages of 3 to 22 years were randomly assigned to receive either traditional cryotherapy treatment or duct tape treatment for their wart. In the paper a table of the location of the wart is presented for each of the two treatment types

a. Calculate the conditional proportions of finger warts for each treatment group. 

b. Do the same for each of the other locations to compare the proportions between the treatment groups. 

c. Why do you suppose the authors put this table in their paper?

Transcribed Image Text:

Location Finger Back of heel Plantar Palmar Other Total Cryotherapy 12 3 7 2 1 25 Duct tape 12 3 8 2 1 26