The problem sets are due in the sessions noted in the table. Some of the problems are from the required textbook:
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Randles, R. H., and D. A. Wolfe. Introduction to the Theory of Nonparametric Statistics. Malabar, FL: Krieger, 1991. ISBN: 0894645439.

One day after lecture 4 Problem Set 1 (PDF)  
7 Problem Set 2 (PDF) Hint (PDF)
10 Problem Set 3 (PDF) Hint (PDF)
14 Problem Set 4 (PDF) Hint (PDF)
16 Problem Set 5 (PDF)  
19 Problem Set 6 (PDF)  
23 Problem Set 7 (PDF)  
Two days after lecture 25 Problem Set 8 (PDF)