Presentation on theme: "How Many type of Skittles Are In a 2.17 Ounce Bag? By: Ryan Riling & Tom Dougherty."— Presentation transcript:




You are watching: How many skittles are in a bag

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2 How Many Skittles Are In a 2.17 Ounce Bag? By: Ryan Riling & Tom Dougherty

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3 HistoryHistory -Skittles production originated in England -First introduced to United States in 1974 -Owned by Mars Inc. -Skittles factories are located in U.S, Victoria, Australia, and New Zealand also -Advertising projects are connected through rainbows -“Taste the Rainbow”

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4 PurposePurpose -We wanted to recognize whether or not Mars Inc. (producer of Skittles) was fairly filling their bags with the asserted amount. -We decided to purchase 35 traditional sized bags of Skittles (2.17 ounce) and test to determine if Skittles consumers are gaining their money’s worth.

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5 Retail Stores -Acme  Five 2.17 oz. Bags -Genuardi’s  Five 2.17 oz. Bags -Giant  Five 2.17 oz. Bags -Redner’s  Five 2.17 oz. Bags -CVS  Five 2.17 oz. Bags -Wawa  Five 2.17 oz. Bags -7-11  Five 2.17 oz. Bags TOTAL = 35 BAGS

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6 DataFile

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7 GraphsGraphs

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8 Graphs (Cont.) 5254565860626466687072 Five Number Summary Minimum = 53 Quartile 3 = 63 Quartile 1 = 56 Maximum = 68 Average = 59 Number of Skittles

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9 Stem Plot 5 53 54 5 5 5 56 6 6 6 7 7 7 7 58 8 8 9 9 9 9 9 9 60 62 2 2 3 3 3 64 4 5 66 6 68 Shape = Roughly Symmetric Center = 59 Spread = Minimum – 53 Maximum – 68

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10 1 Var Stats x = 59.4286 Σx = 2080 Σx² = 124110 Sx = 3.8293 n = 35 Minimum = 53 Quartile 1 = 56 Average = 59 Quartile 3 = 63 Maximum = 68

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11 Assumptions 1). SRS 1). 2). Common Population 2). 35 ≥ 30 OR n ≥ 30

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12 HypothesisHypothesis -Ho:  = 60 Skittles per 2.17 oz. Bag -Ha:  ≠ 60 Skittles per 2.17 oz. Bag

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) =.3835 Degrees Freedom: Df = n-1 =" > 13 TestsTests One Sample T-Test Test Statistic: t* = x - µ s/ √n = P-Value: 2 * P(µ > -.8828) =.3835 Degrees Freedom: Df = n-1 = 34 -.8828

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) =.3835 Degrees Freedom: Df = n-1 =" title="TestsTests One Sample T-Test Test Statistic: t* = x - µ s/ √n = P-Value: 2 * P(µ > ) =.3835 Degrees Freedom: Df = n-1 =">

14 Tests (Cont.) Conclusion: We fail to reject the null hypothesis bereason our p-worth is higher than  =.05. We have adequate proof that the intend variety of Skittles per 2.17 oz. bag is 60 Skittles.

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15 Confidence Level (95%) Confidence Level = x ± t*(s/ √ n) = (58.113, 60.744) We are 95% Confident that the intend variety of Skittles per 2.17 oz. bag is between 58.113 and also 60.744 Skittles.

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16 Personal Opinions -We felt as though it was very tedious to count the amount of Skittles in each of the 35 bags -It was time-consuming to take a trip to each of the 7 stores to obtain the compelled amount of samples -We agree via our T-Test outcomes and also feel as though wbelow ever you select to buy your Skittles from, you are acquiring a fair amount per bag for the price.

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17 ApplicationApplication -Although Giant had actually the best average variety of Skittles per bag, we feel as though it is unnecessary to go out of your method just to buy Skittles at Giant. -We feel as though Mars Inc. sensibly manufactures and also packeras their Skittles bags.

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- 7-11 Skittles bags are packaged many reasonably and have an average of 60.2 Skittles per bag.

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18 Bias/ErrorBias/Error -Incorrect Skittles count -Mistake entering data into lists -Obtaining Skittles at miscellaneous stores  chose the first accessible bags -Counting damaged or deformed Skittles

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