Participants of an experiment are numbered from 1 to 80. The participants are to be randomly assigned to two different groups. Use a random number generator different from the one you used in Exercise 21 to choose 40 participants for the treatment group.

The other 40 participants will go into the control group. List the participants, according to number, in each group. Tell which method you used to generate the random numbers.

Data from Exercises 21

A researcher wants to study the effects of dieting on obesity. Eighteen people volunteer for the experiment: Lewis, Alice, Raj, William, Edwin, Mercer, Edgar, Bill, Zoya, Kate, Lara, Bertha, Dennis, Jennifer, Ahmed, Ronald, Harry, and Arthur. Use a random number generator to choose nine subjects for the treatment group. The other nine subjects will go into the control group. List the subjects in each group. Tell which method you used to generate the random numbers.