Use the Simple Random Sample applet. You can use the Simple Random Sample applet to choose a treatment group at random once you have labeled the subjects. Example 2.11 (page 44) uses Table B to choose 20 students from a group of 40 in a study of smartphone preferences. Use the applet to choose the 20 students who will evaluate Phone 1. Which students did you choose? The remaining 20 students will evaluate Phone 2.