For adult men, is the amount of money spent per week on fast food related to body weight? By: Chad Vigil, Jeannette Watson, Jason Williams, Amanda Webster, Kylee West
Purpose We intend to understand: -If fast food causes an increase in body weight for adult men -"For adult men, is the amount of money spent per week on fast food related to body weight?” If no link is found: discuss alternative causes for increased body weight for adult men
Study Design A list of adult male individuals was made Each adult male was assigned a number Numbers generated randomly using Excel Each adult man corresponding to the drawn numbers will be surveyed Simple random sample will be achieved Data will be collected with a printed questionnaire asking two questions: 1) How much money do you spend on fast food each week? 2) What is your body weight?
Data $ Spent on Fast Food/WeekBody Weight (lbs.)
Variable Statistics for: Amount of Money Spent on Fast Food per Week Mean: Standard Deviation: Five-number summary: 7, 16, 25, 31.5, 50 Range: 58 Mode: 15, 25, 30 Outliers: 65
Histogram
Boxplot
Variable Statistics for: Body Weight of Participants Mean: Standard Deviation: Five-number summary: 145, 168, 185, 213.5, 250 Range: 105 Mode: 205, 250 Outliers: none
Histogram
Boxplot
Regression Analysis Linear Correlation Coefficient:.172 Equation for line of regression: ŷ=.3781x
Scatterplot with Line of Regression
Difficulties/Surprises Opposing interests in research volunteers made topic selection difficult Communication amongst research volunteers Data collaboration Hesitant participants
Analysis Critical Value=.396 Correlation Coefficient=.172 Correlation Coefficient shows there was no relationship between the two variables
Interpretation and Conclusion Correlation Coefficient=.172 For adult men, the amount of money spent per week on fast food IS NOT related to body weight Potential causes for increased body weight: Physical inactivity Extracurricular activities (video games, television, etc.)
Future Studies Obtain larger sample size Replace body weight (lbs.) with the randomly selected individual’s BMI