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# A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo.

A clinical trial is conducted comparing a new pain reliever for arthritis to a placebo. Participants are randomly assigned to receive the new treatment or a placebo and the outcome is pain relief within 30 minutes. The data are shown below.Pain ReliefNo Pain ReliefNew Medication4476Placebo2199Is there a significant difference in the proportions of patients reporting pain relief? Run the test at a 5% level of significance.Reject H0 if Z < ________ or if Z > ________ alpha= ________ = ________ = ________ = ________ = ________ Based on comparing the computed z to the rejection level z which of the following is (are) true? A.We have statistically significant evidence at alpha=0.05 to show that H0 is false.B.We have statistically significant evidence at alpha=0.05 to show that there a significant difference in the proportions of patients reporting pain relief.C.We do not have statistically significant evidence at alpha=0.05 to show there a significant difference in the proportions of patients reporting pain relief.D.a and b