Presentation top top theme: "How numerous Skittles room In a 2.17 oz Bag? By: Ryan Riling & Tom Dougherty."— Presentation transcript:




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2 How many Skittles room In a 2.17 oz Bag? By: Ryan Riling & Tom Dougherty

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3 HistoryHistory -Skittles manufacturing originated in England -First presented to United states in 1974 -Owned by Mars Inc. -Skittles factory are situated in U.S, Victoria, Australia, and brand-new Zealand -Advertising projects are linked with rainbows -“Taste the Rainbow”

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4 PurposePurpose -We wanted to determine whether or not Mars Inc. (producer the Skittles) was reasonably filling their bags through the declared amount. -We decided to purchase 35 conventional sized bags of skittles (2.17 ounce) and also test to identify if Skittles consumer are getting 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  5 2.17 oz. Bags -Redner’s  5 2.17 oz. Bags -CVS  5 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 DataData

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7 GraphsGraphs

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8 Graphs (Cont.) 5254565860626466687072 five Number an overview Minimum = 53 Quartile 3 = 63 Quartile 1 = 56 maximum = 68 average = 59 variety 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 form = roughly Symmetric center = 59 spread = Minimum – 53 best – 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 mean = 59 Quartile 3 = 63 preferably = 68

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11 assumptions 1). SRS 1). 2). Normal population 2). 35 ≥ 30 OR n ≥ 30

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12 HypothesisHypothesis -Ho:  = 60 skittles per 2.17 oz. Bag -Ha:  ≠ 60 cones 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 levels Freedom: Df = n-1 = 34 -.8828

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

14 test (Cont.) Conclusion: we fail to reject the null hypothesis because our p-value is greater than  =.05. We have enough evidence that the mean number of Skittles every 2.17 oz. Bag is 60 Skittles.

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15 trust Level (95%) confidence Level = x ± t*(s/ √ n) = (58.113, 60.744) We room 95% Confident that the mean variety of Skittles every 2.17 oz. Bag is in between 58.113 and also 60.744 Skittles.

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16 an individual Opinions -We felt as though that was very tedious to count the lot of skittles in every of the 35 bags -It was time-consuming to travel to each of the 7 stores to achieve the compelled amount the samples -We agree v our T-Test results and feel together though where ever you choose to buy your Skittles from, friend are acquiring a fair amount per bag because that the price.

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17 ApplicationApplication -Although gigantic had the best average number of Skittles per bag, us feel as though it is unnecessary come go out of your means just to buy cones at Giant. -We feel together though Mars Inc. Fairly manufactures and packages their Skittles bags.

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- 7-11 skittles bags room packaged most reasonably and have an mean of 60.2 skittles per bag.

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18 Bias/ErrorBias/Error -Incorrect Skittles counting -Mistake beginning data into lists -Obtaining skittles at assorted stores  chose the an initial available bags -Counting damaged or deformed cones

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