Question: The data in the table below are heart performance scores before and after treatment from a sample of randomly selected patients. Which of the following

The data in the table below are heart performance scores before and after treatment from a sample of randomly selected patients. Which of the following methods can be considered for testing whether there is significant difference in heart performance scores between before and after the treatment? (There can be more than one correct answer.)

Patient ID	1	2	3	4	5
Before	3.5	4.1	3.1	3.7	4.2
After	4.1	4.4	4.0	3.8	4.2

	A.	One-way ANOVA
	B.	Wilcoxon Rank Sum Test
	C.	Two independent samples t-test
	D.	Signed Rank Test

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