g t tests for two-way tables Baldi and Moore exercise 22.35, page 555 use their output in figure 22.3:Ir on page 55? comparing acne treatments. Acne is a common skin disease that affects most adolescents and can continue into adulthood. A study compared the effectiyeness of 3 acne treatments and a placebo, all in gel form, applied twice daily for 12 weeks. The study's 51? teenage volunteers were randomly assigned to one of the 4 treatments. Success was assessed as clear or almost clear skin at the end ofthe 12 week period. Figure 22.? gives counts and chisquare output for this study. is there signicant eyidence that the 4 treatments perform differently ? If so, how do they compare