1 / 22

Are You Counting Your Calories??

Cafeteria Nutrition Facts. Are You Counting Your Calories??. Clark Boothby Ilana Bucholtz Alison Greco. Application. Obesity is a major problem in America According to the American Heart Association, more than 9 million Americans between the ages of 6 to 19 are considered overweight

gyan
Download Presentation

Are You Counting Your Calories??

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Cafeteria Nutrition Facts Are You Counting Your Calories?? Clark Boothby Ilana Bucholtz Alison Greco

  2. Application • Obesity is a major problem in America • According to the American Heart Association, more than 9 million Americans between the ages of 6 to 19 are considered overweight • The school district and country wants children to live a healthier lifestyle and acquire better eating habits, but at the same time is promoting unhealthy choices especially in the cafeteria • We wanted to discover the types of decisions CB South students make when buying lunch.

  3. Sample Calorie Count FoodCalories French Fries (3 oz.) 180 Cheeseburger 380 Chicken Sandwich 410 Pasta w/ Tomato Sauce 308 Chocolate Chip Cookie 130 Fountain Drink (12 oz.) 192 **Info. obtained from Sodexho food service and calorieking.com**

  4. Procedure • Observed 30 students from each lunch for a total of 120 students • To ensure randomization, we recorded data for every third person in the lunch line

  5. Assumptions • 2 independent SRS • 2 Normal Populations Or

  6. Two Sample T-Test T= = 4.455 P=

  7. Conclusion We reject Ho in favor of Ha because p-value 9.6 X 10^-6 is < α=.05. We have sufficient evidence that boys consume more calories than girls during lunch in the cafeteria.

  8. Two-Sample T-Test Avg. cal. A lunch: 855.2 Avg. cal. D lunch:910.867 T= -.9588 P=

  9. Conclusion We fail to reject Ho because p-value .1712 is > α=.05. We have sufficient evidence that the average amount of calories consumed during A lunch is equal to the average amount of calories consumed during D lunch.

  10. Assumptions • SRS • Normal Population • or • n

  11. One Sample T-Test Observed avg. cal. consumed by boys: 970.0625 T= = 4.2285 P=

  12. Conclusion We reject Ho in favor of Ha because p-value 3.88 X 10^-5 is < α=.05. We have sufficient evidence that the average amount of calories boys consume during lunch is greater than 845.

  13. Confidence Interval We are 95% confident that the average amount of calories consumed by boys in lunch is between 910.96 and 1029.2 calories.

  14. Box and Whisker Plot Max:1652 Min: 527 Q1: 809.5 Median: 938 Q3: 1104 Calories consumed by boys during lunch. Test for Outliers Q3 + (1.5)(IQR) = 1104 + (1.5)(294.5) = 1545.75  Yes, there is at least one outlier in the upper range of the data. Q1 – (1.5)(IQR) = 809.5 – (1.5)(294.5) = -432.485 No, there are no outliers in the lower range of the data.

  15. One Sample T-Test Observed avg. cal. consumed by girls: 791.0357 T= P=

  16. Conclusion We reject Ho in favor of Ha because p-value 8.24 X 10^-7 is <α=.05. We have sufficient evidence that the average amount of calories consumed by girls during lunch is greater than 645.

  17. Confidence Interval We are 95% confident that the average amount of calories consumed by girls during lunch is between 736.51 and 845.56 calories.

  18. Box and Whisker Plot Min: 120 Max: 1152 Q1: 635 Median: 787 Q3: 932 Calories consumed by girls during lunch. Test for Outliers Q3 + (1.5)(IQR) = 932 + (1.5)(297) = 1377.5 No, there are no outliers in the upper range of the data. Q1 – (1.5)(IQR) = 635 – (1.5)(297) = 189.5Yes, there is at least one outlier in the lower range of the data.

  19. Observed vs. Expected Calories Consumed

  20. Possible Errors • Students buy additional items from vending machines • Students may bring food from home • Students may be buying a lunch to share with a friend • “Healthier” food items such as salads may run out after the first couple lunches • Calories are not always exact and we did not take into account condiment s such as ketchup or honey mustard

  21. Conclusion • Our results were what we expected. In general, students are consuming more at lunch than is recommended for their age group. • Most cafeteria food is somewhat high in caloric content and therefore students are forced to consume more calories even if they are selecting smaller portion sizes. • If you want to follow a healthier lifestyle it is best to stay out of the cafeteria line and pack your own lunch. • Even with our results, we have a feeling that students will continue to buy the addictive, greasy, and salty fries!

More Related