regression analysis project
TRANSCRIPT
REGRESSION ANALYSIS PROJECT
Ross Weitzer, Billy Wagner, Tara Devlin, Mengyun Jia, Ruey-Min Chu
Research Question
Do the nutritional factors in chips, such as total fat, carbohydrates and
protein determine the amount of calories in chips?
Hypothesis
We believe that the main nutritional factors, such as total fat, carbohydrates and protein will be directly proportional to the caloric content of the chips.
Research
Compiled nutritional facts of various types of chips
Compared Total Fat, Protein and Carbohydrates to Calories.
Popular Types of Chips Fat(g) Carbs(g) Prot(g) CaloriesPotato Chips 10.62 14.1 1.86 155Unsalted Potato Chips 9.81 15 1.98 152Reduced Fat Potato Chips 5.9 18.97 2.01 134Light Potato Chips 7.29 18.4 1.59 142Fat Free Potato Chips 0.2 16.78 1.88 75Barbecue Flavor Potato Chips 9.19 14.97 2.18 139Sour Cream and Onion Flavor Potato Chips 9.61 14.6 2.3 151White Corn Tortilla Chips 6.62 18.52 2.21 138Low Fat Baked Tortilla Chips 1.62 22.68 3.12 118Taco Flavor Tortilla Chips 6.86 17.89 2.24 136Nacho Flavor Tortilla Chips 7.34 17.19 2.27 144Reduced Fat Nacho Flavor Tortilla Chips 4.31 20.3 2.47 126Plain Corn Chips 8.05 17.86 1.71 147Unsalted Corn Chips 9.47 16.27 1.87 158Barbecue Flavor Corn Chips 9.27 15.93 1.98 148Onion Flavor Corn Chips 6.41 18.46 2.18 142
Results-Scatterplot
0 2 4 6 8 10 120
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Calories vs. Total Fat(g)
Calories
Total Fat(g)
Results-Scatterplot
12 14 16 18 20 22 240
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Calories vs. Carbs(g)
Calories
Carbs(g)
Results-Scatterplot
1.4 1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.40
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Calories vs. Protein(g)
Calories
Protein(g)
Results-Histogram
20 40 60 80 100 120 140 160 180 More0
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Histogram
Frequency
Bins
Fre
quency
Calories vs. Total Fat(g)
Calories vs. Carbs(g)
Calories vs. Protein(g)
Correlation 0.9123 0.3933 0.2277
Coefficient of Determination
83.2% 15.5% 5.2%
Interpretation of Slope and intercept
Direction: PositiveStrength: StrongLinear
Direction: NegativeStrength: WeakLinear
Direction: NegativeStrength: WeakUndetermined
Results-Regression
Conclusion
From our results we conclude that total fat and calories have a direct relationship while carbs and protein have a weak relation to the calories.
Questions
Work Cited
http://fatsecret.com/calories-nutrition/food/chips