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Created: Dec 15, 2009
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Dunkin Donuts vs. Krispy Kreme... Which is better for you?
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For my report I wanted to see which donut franchise ou of Krispy Kreme and Dunkin Donuts would be a better choice if one were to eat there.

Question 1: Considering the entire menu of pastries, breakfast sandwiches, and beverages which franchise has more calories in their products?

Result 1: Stem and Leaf of Dunkin Donuts   [Info]
Variable: Calories for Franchise = Dunkin Donuts
Decimal point is 2 digit(s) to the right of the colon.
1 : 3
1 : 7788889
2 : 0000000000011111111122223333344444444
2 : 55555566777777777788889999999999
3 : 000000001113444444
3 : 555666788
4 : 01
4 : 55667799
5 : 0000011133
5 : 66789
6 : 0

Result 2: Stem and Leaf of Krispy Kreme   [Info]
Variable: Calories for Franchise = Krispy Kreme
Decimal point is 2 digit(s) to the right of the colon.
1 : 8
2 : 00011133444
2 : 5667899999
3 : 00022344
3 : 588

Result 3: Scatter Plot   [Info]
Right click to copy

Result 4: Column Statistics of Calories   [Info]
Summary statistics for Calories:
Group by: Franchise
Franchise n Mean Variance Std. Dev. Std. Err. Median Range Min Max Q1 Q3
Dunkin Donuts 130 309.3846 12452.332 111.59002 9.787092 280 470 130 600 230 350
Krispy Kreme 33 273.33334 2922.9167 54.064007 9.411335 280 200 180 380 230 300

At first glance it may seem that Dunkin Donuts has more calories in their product but they also have a wider variety of products. From looking at the stem and leaf plots of the calories both centers seem to be at the 200 range however the Dunkin Donuts varies from 130 calories to awhopping 600 calories. The range of Krispy Kreme varies less with products ranging from 180 to 380 calories. Both means are pretty similar with Dunkin Donuts at 309 and Krispy Kreme at 273. The plot of Dunkin Donuts is skewed left where as Krispy Kreme's is more symmetrical.

The double scatter plot comparing the two shows that Dunkin Donuts has a moderate positive linear association between the calories and calories from fat. The line of Krispy Kreme has a strong positive linear association between calories and calories from fat. These two data shows that Krispy Kreme's products varies less while Dunkin Donuts is more evenly distributed with calories with a greater span.

Question 2: How much sodium is an a given product?

Result 5: Dotplot of Menu Item   [Info]
Right click to copy

The sodium dot plot shows how much salt is in the varitey of products that both Krispy Kreme or Dunkin Donuts have. If you were attemptingto watch your sodium intake then having a product such as the Bacon Cheddar Biscuit Sandwich or one of the item cumulatively grouped together in other would not be a good idea. The dotplot has at least oneoutlier in the other category and the sodium variation ranges from about 100 grams to above 5000 grams. That's pretty salty!

Question 3: Which franchise's products has more carbs?

Result 6: Boxplot   [Info]
Right click to copy

Result 7: Column Statistics of Carbs   [Info]
Summary statistics for Carbohydrates (g):
Group by: Franchise
Franchise n Mean Variance Std. Dev. Std. Err. Median Range Min Max Q1 Q3
Dunkin Donuts 132 64.083336 31816.459 178.37169 15.525263 34 1618 2 1620 29 60
Krispy Kreme 33 32.727272 54.267044 7.3666167 1.2823634 33 27 19 46 26 38

This boxplot shows that the franchise with the most carbs was definetly Dunkin Donuts with a mean of 64 and ranging all the way up to 1620. Krispy Kreme had far lower carbs with their mean at 33 and a max of 46.  Dunkin Donuts also had extreme outliers causing their carbs to go way up.

Question 4: Considering all the contributing factors which product is best for you to eat? (Franchise does not matter)

Result 8: Bar plot with summary of Item Types   [Info]
Right click to copy

With all the factors playing an important part in this the worst product to eat would be the doughnut with their score almost in the 1200's. Seems odd to say but the product they capitalize on most is by far the most unhealthy. The better choice would be the bagel or cookie with their score below the 200's.

Question 5: Which franchise's products has the most protein?

Result 9: Histogram of Protein Content   [Info]
Right click to copy

Dunkin Donuts by far has the most protein content in their products ranging from 0 grams- 35 grams. Krispy Kreme has the least amount of protein with the majority of their products havin 0 grams of protein. This probaly results from the wider range of products they have to offer such as sandwiches with meat in them.


In conclusion, when choosing a donut franchise to eat you should take the different aspects into consideration, if you want a wider range of products with more protein in them then Dunkin Donuts is the right choice for you. If you prefer lower carbs and sodium in your breakfast snack but still tasty then Krispy Kreme is your best bet!

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