regression analysis project

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