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 Relief	No Pain Relief
New Medication	44	76
Placebo	21	99

Is there a significant difference in the proportions of patients reporting pain relief? Run the test at a 5% level of significance.

Reject H₀if Z< ________ or if Z>________

alpha= ________

⁼________

⁼________

= ________

Z = ________

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 .05 to show that H₀is false.
• B) We have statistically significant evidence at .05 to show that there a significant difference in the proportions of patients reporting pain relief.
• C) Wedo nothave statistically significant evidence at .05 to show there a significant difference in the proportions of patients reporting pain relief.
• a and b