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 patient's self-reported

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

Symptoms Worsened No Effect Symptoms Improved total

Treatment1 22 14 14 50

Treatment 2 14 15 21 50

Treatment 3 9 12 29 50

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