The independent variables of the study include the ethnicity of the participants and the causes of stress that is due to high blood pressure or public speaking.
B) What is the dependent variable?
Heart disease among the parents of students is used as the dependent variable.
C) Generate two appropriate hypotheses
H1: Heart disease depends on ethnicity.
H2: Heart disease is caused due to the stress.
D) What procedure was used to avoid extraneous confounds in the selection of participants?
A sample is a subset of a population. The population can be a set of people, animals, or things. ...