Using the data below, suppose we focus on the proportions of patients who show improvement. Is there a statistically significant difference in the proportions of patients who show improvement between treatments 1 and 2. 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