Are elderly women living at home healthier than those living in a nursing home? this question was studied by a group of psychologists at the university of delhi. for a sample of elderly women, data were collected on the following variables: • heart rate • age group (1 = 60 to 70 years: 2 - 71 to 80 years; 3 = 31+ years) • body weight • environment (0 = nursing home; 1 = living with family) • height recognizing the measurement scale of the data collected on each variable is important because the type of data dictates the appropriate data summary methods and statistical procedures which variable(s) in the data set are measured using a nominal scale? environment age group environment and age group none of the variables