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Cola Question mark
Transcript of Cola Question mark
URLs http://bizcovering.com/marketing-and-advertising/the-world%e2%80%99s-most-recognizable-symbols-and-trademarks/ So does Coca-Cola live up to the hype? Does the world's most famous brand stand head and shoulders above other cola brands? A 2007 blind taste test was conducted just to see if that was the case. Coca-Cola was put up against 16 other brands of cola in order to find which cola tasted the best. http://web.uvic.ca/akeller/pw401/resources/rf_image_optimze/coca_cola_large.gif http://www.aolcdn.com/channels/03/04/48c8842e-000fc-035f3-400cb8e1 http://willyoubemyhero.files.wordpress.com/2009/11/coca-cola_logo5.jpg The taste test used 17 brands of soda tasted in a random order. The “testers” rated the soda on a scale of one to five (with five being the best) in 4 categories; aroma, fizz, smoothness, flavor. The four scores were averaged together to create the “over all” score. By
and Jon Esden http://www.aolcdn.com/channels/03/04/48c8842e-000fc-035f3-400cb8e1
http://web.uvic.ca/akeller/pw401/resources/rf_image_optimze/coca_cola_large.gif http://thesnarkychef.com/wp-content/uploads/2008/04/blind-taste-test.jpg http://rlv.zcache.com/retro_cola_can_design_photosculpture-p1537686498812358673s98_400.jpg http://upload.wikimedia.org/wikipedia/commons/thumb/d/d2/Question_mark.svg/220px-Question_mark.svg.png In the taste test Coca-Cola received 3 out of 5 points and had the seventh highest score out of the 17 colas tested. Ingredients for Coca Cola:
sugar (fructose of high-fructose corn syrup, depending on country)
phospheric acid v. caramel (E150d)
natural flavorings Coke vs. Generic Coke:
Our Experiment is similar to the first experiment we found. They compared Coca-Cola with 16 other brands of Coke. We compared the real Coca-Cola to Shaws brand Cola.
We randomly selected 60 students from Spingfield High School's student body. To find our random sample we assigned each student a number, 1-513 (the total number of students). We then randomly generated 60 numbers, those assigned to the numbers we got, we chosen for our experiment. If any student was generated twice we did not include them in our sample. Fortunately, this did not happen for us.
Conducting Our Experiment:
First we delivered slips of paper instructing our 60 randomly selected students to report to Mr. Dean's room during their lunch on Thursday May 20, 2010.
We hand delivered all of our slips on the morning of May 19, 2010.
We gave them directly to the student or to their teachers.
The slip of paper that we delivered said the following:
Dear Springfield High School Student,
The AP Statistics class is collecting data for their end of the year projects. You have been selected randomly from the total population of the school to participate. Our experiments rely on accurate data so we ask that you please answer honestly, your answers will remain confidential. Please report to Mr. Dean's room (C204) during your lunch on Thursday, May 20th 2010.
Thank you sincerly, the AP Stats class.
Out of this experiment we had 31 students report to Mr. Dean's room. We felt this would be a sufficient repersentation of student body. When the students arrived at Mr. Dean's room, we first flipped a quarter to see whether they would drink the real Coca-Cola (drink A) or the generic Cola (drink B). Collecting Data: Heads was assigned to drink A and tails to drink B. Before they drank A or B they were given a glass of water to cleanse their palate. They drank half the cup of water. Next they drank a full cup of either A or B, depending on if they got heads or tails. They then cleansed their palate again by finishing the glass of water. Then they drank a full cup of A or B depending on what they drank first. Lastly, we had each student fill out a slip of paper, on which they circled what substance they believed was the real Coca-Cola, A or B. One Proportion Z-Test
HO:p= people can't tell the difference between the generic Cola and the real Coca-Cola
HA:p= people can tell the difference between the generic Cola and the real Coca-Cola. Assumptions and Conditions:
Our sample is under 10% of the total popultion of the student body
We randomly selected 60 students for our experiment
We are assuming that each student selected was independent of the next.
np=31 x .5 = 15.5
nq= 31 x .5 = 15.5
All conditions and assumptions are met, we will proceed with a One proportion Z-Test! SD(p)= pq ^ ^ SD(p)=
^ pq n _ = (.5)(.5) 31 _ = .0898 Our p = .4838 Z= p-po SD(p) - = .4838 - .50 .0898 - = -.179 P = P(z > .179) <.57126 We fail to reject our null hypothesis. We have a very high p-vaule (.57). This is strong evidence that peple can not tell the difference between generic brand Cola and the real Coca-Cola Ingredients for Generic Brand Cola:
high fructose corn syrup
caffeine Store Brand vs. Name Brand Blind Taste Test Experiment Len Penzo blogs about personal finance. For one of his articles, he decided to conduct an experiment to see what was better, generic brand products or name brand products. He tested six products: cookies, cheese, kilbassa, white corn tortilla chips, salsa, and peas. For each of these he bought a store brand item and a name brand item. He had a panel of ten judges (his family). The judges would have a sample of each product then report which one they belived tasted better. Penzo is obviously not a statistician. His sample was not random, and there is a strong possiblity of bias. But, his findings are still interesting. From his experiment, Penzo found that whether or not the product was store brand or name brand didn't always matter. Whether the name brand was better or not depended more on what the individual product was. http://lenpenzo.com/blog/id771-my-store-brand-vs-name-brand-blind-taste-test-experiment.html ^ ^ ^