1 / 9

Starbuck’s

Starbuck’s. By Christina Petersen Period 5 5/15/14. The Problem.

brit
Download Presentation

Starbuck’s

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Starbuck’s By Christina Petersen Period 5 5/15/14

  2. The Problem • Everywhere you go, a Starbuck’s is close by. In Hemet alone, we have six within 5 miles of the school. I see this and have always wondered how far apart two different Starbucks’ are in one city. I was researching one day and came across a claim from blogger James R.A Davenport who said that the furthest you can get from a Starbucks is 170 miles and over 80% of Americans live within 20 miles of a Starbucks. With this claim, my interest was sparked and I had to know. • That is why I will attempt to answer the following question: What is the average distance between two Starbuck’s in the state of California?

  3. Research Design • To find the information needed to answer this question, I will need to locate the cities with a Starbucks and randomly pick the cities I will use, in this case, 20 cities. I will, then, randomly select 2 Starbucks’ from each city and measure the distance between the two. • There were 2 confounding variables: The city didn’t have a Starbucks, or the city only had one city. When collecting the data, I found three of the cities I had chosen had only one and I threw out the data for that city. • I will use a T-Confidence Interval, being that standard deviation and the mean are unknown. • All randomizing was done with my TI-84

  4. Data Analysis

  5. Data Analysis

  6. Data Analysis • The mean distances of the Starbucks in the sample are 1.4994 miles apart. The sample standard deviation of the distances between two Starbucks’ in the state of California is 1.1755. • 1.4994+ (1.746) (1.1755/ the square root of 17), 1.4994- (1.746) (1.1755/ the square root of 17) • CI( .89504,2.1038)

  7. Summary and Conclusions • I am 95% confident that the true average of the distances between two Starbucks’ in the state of California is between .89504 miles and 2.1038 miles apart. • I recommend to future researchers who may investigate my question or a similar question to only test a portion of California instead of the entire state as whole.

  8. Other Statistics about Starbucks • Santa Fe Springs, CA has 560 Starbucks Stores within 25 miles • The average Starbucks customer visits Starbucks 6 times per month while a loyal 20% of customers go to the stores 16 times per month’ • A Starbucks grande coffee has 320 milligrams of caffeine , over four times the amount in a Red bull • Starbucks uses over 93 million gallons of milk per year, which is enough 155 Olympic sized swimming pools • Starbucks uses 2.3 billion paper cups per year • There are over 87,000 drink combinations possibilities • California has 2,010 stores followed my Texas with 604

  9. Where did all my information come from? • The list of California cities with a Starbucks http://www.starbuckseverywhere.net/California.htm • The Starbucks Stats http://www.businessinsider.com/15-facts-about-starbucks-that-will-blow-your-mind-2011-3?op=1http://brandongaille.com/20-incredible-starbucks-statistics/ • The information that sparked my interest http://eater.com/archives/2012/10/04/the-closest-starbucks-is-never-more-than-170-miles-away.php

More Related