Question: 9. Refer to Exercise 4 (Section 15.2). The data in this table are from a paired-difference experiment with n57 pairs of observations a. Use Wilcoxons

9. Refer to Exercise 4 (Section 15.2). The data in this table are from a paired-difference experiment with n57 pairs of observations

Pair Population 1 2 3 4 5 6 7 1 8.9 8.1

a. Use Wilcoxon’s signed-rank test to determine whether there is a significant difference between the two populations.

b. Compare the results of part a with the result you got in Exercise 4 (Section 15.2). Are they the same? Explain

Pair Population 1 2 3 4 5 6 7 1 8.9 8.1 9.3 7.7 10.4 8.3 7.4 2 8.8 7.4 9.0 7.8 9.9 8.1 6.9

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