STAT 515 Homework 2: McClave & Sincich exercises: 4.4, 4.22, 4.28, 4.44(a,b), 4.52, 4.64, 4.66(a,b), 4.78 Optional problems are 4.32, 4.44(c), 4.76, 4.82. You can do these for practice, but they will not be graded. NOTE: Problem 4.52 requires looking at the information in problem 4.36.