Reference no: EM132279454

Leisure-time physical activity (PA) patterns of adolescent boys and girls were studied. Data were collected from 1000 children in grades 9 through 12 using a self-report questionnaire administered in physical education classes. Depending on age and gender, 10% to 25% of youth report being completely sedentary. Contrary to the findings of most national-scope studies, there was little difference in the extent of participation in PA for boys and girls. Overall, approximately 60% of boys and 56% of girls report participating in PA 3 or more days per week for 30 minutes or more per occasion, far short of the national health goal of 75%. Findings also reveal that participation in leisure-time PA declines substantially with age.

a. What is the dependent variable in this study?

b. There are two independent variables in this study. Name both of them.

c. State the null hypothesis for at least one of the independent variables studied.

d. What is the conclusion regarding the null hypothesis you presented in the previous item?

e. What types of statistical errors might have been made based on the conclusions drawn?