Question: A study is designed to investigate whether there is a difference in response to various treatments in patients with Rheumatoid arthritis. The outcome is the

A study is designed to investigate whether there is a difference in response to various treatments in patients with Rheumatoid arthritis. The outcome is the patient's self-reported effect of treatment. The data are shown below. Is there a significant difference in the effect of treatment? Run the test at a 5% level of significance.

	Symptoms Worsened	No Effect	Symptoms Improved	Total
Treatment 1	22	14	14	50
Treatment 2	14	15	21	50
Treatment 3	9	12	29	50

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