QUESTION 6

Two independent random samples were taken from two populations to compare their median cholesterol levels. The data are listed below: Sample 1: 117, 115, 135, 116, 141 Sample 2: 151, 118, 146, 147, 155 Which of the followings is(are) correct if Wilcoxon Rank Sum Test is used? (There are two correct answers.)

	A.	There is statistically significant difference between the median cholesterol levels of the two populations at 1% level of significance.
	B.	There is no statistically significant difference between the median cholesterol levels of the two populations at 1% level of significance.
	C.	There is statistically significant difference between the median cholesterol levels of the two populations at 5% level of significance.
	D.	There is no statistically significant difference between the median cholesterol levels of the two populations at 5% level of significance.