EXAMPLE 3.12

Using software for the randomization. First create a data set with the numbers 1 to 10 in the first column. See Figure 3.4(a). Then we use RAND() to generate 10 random numbers in the second column. See Figure 3.4(b). Finally, we sort the data set based on the numbers in the second column. See Figure 3.4(c). The first five labels (7, 3, 4, 2, and 9) will receive the treatment. The remaining five labels (10, 6, 8, 1, and 5) will receive the placebo control.