The class has a fairly even distribution of genders and ages. The ages of the subjects range from from 20 to 60 years old. All the people have participated in the class for 30 weeks, and they may have lost weight in the process. You measured their weight at the beginning of the program and at the end of 30 weeks. You will have data on three variables - age, gender, and weight loss.
Age is defined as the person' s age in years at the beginning of the study.
Gender is based on the subject's self report and is classified as either male or female. Weight loss is defined as the difference, in whole pounds, between the subject's weight, in normal exercise clothes, measured on the first day of the exercise program and the last day. The research questions and hypotheses are described in steps 3 and 4 . You will not have to do the statistical calculations. This course only focuses on how to interpret statistics, not how to calculate them.