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An ophthalmologist reviews fundus photographs 30 patients wtth macular degeneration both before and 3 month after receiving a laser treatment. To assess the efficacy, of treatment, each patient is rated as improved, remained the same, or declined.

If, 20 patients improved, 7 declined, and 3 remained the same, assess whether or not patients undergoing this treatment are showing significant change from baseline to 3 months afterward. Report a p-value.

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Category:- Statistics and Probability
Reference No.:- M9366043

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