PLEASE

9. Plantar Heel Pain A medical research team conducted a study to test the effect of magnetic insoles for treating plantar heel pain. In the study, 54 subjects wore magnetic insoles and 41 subjects wore nonmagnetic insoles. All subjects wore their insoles for 4 weeks. The results are shown below. At a = 0.01, can you support the claim that there is a difference in the proportion of subjects who feel all or mostly better after 4 weeks between subjects who used magnetic insoles and subjects who used nonmagnetic insoles? (Adapted from The Journal of the American Medical Association) Do You Feel All or Mostly Better? Yes Yes 17 18 No 37 No 23 Magnetic Nonmagnetic Insoles Insoles