2. Researchers gathered data about the amount of fat, sugar, and carbohydrates in 22 fast food hamburgers. They gathered the information from fast food To keep their companies’ websites. measurements consistent, all data was described in grams. Using the websites, the companies’ researchers also identified the number of calories for each hamburger. The researchers wanted to know if the amount of calories in the hamburgers depended on how much of each ingredient (fat, sugar and carbohydrates) was in the burger. That is, the researchers wanted to know whether there was a relationship between the amount of fat, sugar, and carbohydrates and the amount of calories in a hamburger. A line has been added to each graph to help you see the patterns more clearly. About how many calories would you predict for a burger that has 20 grams of fat? About how many calories would you predict for a hamburger that has 40 grams of carbohydrates? Which prediction is likely to be more accurate? Why do you think this? Which ingredient has the weakest impact on calories? Why do you think this? What does the idea of strength tell you about whether an ingredient is a good predictor of calories? What is the direction of the fat/calories graph? What does the direction of the line tell you about the association between the amount of fat and the calories in fast food hamburgers? 3. Suppose you gathered the following information from students at a local high school: GPA (grade point average), Average weekly hours spent working at a job, Average weekly hours spent doing homework, Average hours of sleep a night, Hourly wage, Height, Weight, Length of the left foot, Age of the oldest child in the immediate family, student’s Number of children in the immediate family, student’s Gender, Race, and Age.
2. Researchers gathered data about the amount of fat, sugar, and carbohydrates in 22 fast food hamburgers. They gathered the information from fast food companies’ websites. To keep their measurements consistent, all data was described in grams. Using the companies’ websites, the researchers also identified the number of calories for each hamburger. The researchers wanted to know if the amount of calories in the hamburgers depended on how much of each ingredient (fat, sugar and carbohydrates) was in the burger. That is, the researchers wanted to know whether there was a relationship between the amount of fat, sugar, and carbohydrates and the amount of calories in a hamburger. A line has been added to each graph to help you see the patterns more clearly. About how many calories would you predict for a burger that has 20 grams of fat? About how many calories would you predict for a hamburger that has 40 grams of carbohydrates? Which prediction is likely to be more accurate? Why do you think this? Which ingredient has the weakest impact on calories? Why do you think this? What does the idea of strength tell you about whether an ingredient is a good predictor of calories? What is the direction of the fat/calories graph? What does the direction of the line tell you about the association between the amount of fat and the calories in fast food hamburgers? 3. Suppose you gathered the following information from students at a local high school: GPA (grade point average), Average weekly hours spent working at a job, Average weekly hours spent doing homework, Average hours of sleep a night, Hourly wage, Height, Weight, Length of the left foot, Age of the oldest child in the student’s immediate family, Number of children in the student’s immediate family, Gender, Race, and Age.