Premium Essay

Stats Final Project

In:

Submitted By RMalmberg
Words 337
Pages 2
Thesis People are the same. We all have similar body characteristics. We all generally have two eyes, two hands and two feet. Most of us also wear shoes. But producing shoes of varying sizes is expensive and time consuming. Nyke is proposing a plan to cut the cost of their production of shoes by only making one universal size shoe for their customer base. We will look at a sample of data obtained by this company and determine if this is statistically the best plan moving forward for this company. Data Observations A statistical study is only as good as its raw data. Nyke has provided a sample of thirty five of their customer base shoe sizes, heights and genders. This is a really small random sample based on the gross production of shoes already being produced by Nyke, however, we can make some recommendations based on these numbers. We will assume these numbers are correct, and the process of picking these data points were random. Statistical Testing There are many tests we can run on this sample of data to determine if it is viable. First we need to turn this data into numbers that we can use in our equations to calculate our values. So we need to convert the numbers into the mean, median, mode, range of values, x, x2 and the standard deviation of the data. Second, we will use the data to construct several graphs, such as a boxplot, histogram, stem and leaf plot and a scatter plot to determine if or how the data is skewed and if there are any outliers. If we identify any outliers we will determine whether these are errors. Third we will use a t-test, Chi squares and binomial approximation to construct a hypothesis about the data. Fourth, we will construct a linear regression and look for correlation. The analyzed data from these test should give us an idea of whether this plan of a universal shoe size will be right for the

Similar Documents

Premium Essay

Stats Final Project

...Statistical Report Writing No.3. Introduction. A federal regulatory agency is investigating an advertised claim that a certain device can increase the gasoline mileage of car. Ten of these devices are purchased and installed in cars. Gasoline mileage (mpg) for each of the cars is recorded both before and after installation. The data are listed in the following table. The columns “Before” and “After” show the mileage (mpg) before and after the installation of device, the column “Change” represents the improvement of mileage. Here we present the summary of statistics for each variables. In this study we want to determine whether there is a significant gain in mileage after the devices were installed. Data analysis and statistical test. The following figures show the histogram and the normal quantile plot (QQ plot) for the variable “Change”. Note that the sample size is small. Thus, the reliability of statistical test is dependent on the ability to assume that the data come from a normal distribution. In particular, we need to assess the normality for the variable “Change” since it is used for a statistical test. The histogram (above left) displays neither a center nor symmetry of distribution. Rather, it is bimodal, suggesting that there are two distinct populations to which the effect of device could be different. The QQ plot (above right) also indicates that the plots do not follow the straight line. Thus, the normality of data cannot be assumed, making...

Words: 1042 - Pages: 5

Free Essay

Business Environment

...Business Environment 1 Final Essay 2014 – 2015 Section 1: PEST Analysis Technique * Section 1.1 Social environment is the sign of the human spirit civilization and material civilization’s development. On the basis of the natural environment, through long-term conscious social labor, human beings have been processing and transforming the natural material and then social environment was formed. Social environment as one of the external environment factors has a great influence on business. With lasting changes in social environment that will cause demand of human beings for new products. (Haider, 2010) As a result, social environment will give marketing a new guidance. And demographic and cultural will be included as two main factors in social environment. Demographic is to gather people in groups that share with same common criteria. Because of the variables of demographic, demographic is divided in many parts. Such as age, gender, income, race, religion. (Naik, 2013) Cultural is the values and ideologies of a particular group of individuals. And it consists of languages, regions, habits, arts and so on. (Zimmermann, 2015) Besides, both demographic and cultural have direct link with marketing. Demographic will direct determine the potential capacity of the market. What’s more, the structure of population age and the level of education will have profound influence on market structure. Due to different cultural will cause different consumption concept, so cultural will affect...

Words: 2345 - Pages: 10

Free Essay

Fdfglkd

...Final Time Table - Fall 2014 ( v 20141113-1130 ) CIIT_Lahore FA14-BEC-A (Semester 1) (DDP) 2 10:00 - 11:30 HUM-Huma Ijaz 1 8:30 - 10:00 Phy-Dr. Saif Ur Rehman 3 11:30 - 1:00 4 1:30 - 3:00 5 3:00 - 4:30 HUM-Dr. Musferah Mehfooz 6 4:30 - 6:00 7 6:00 - 7:30 Subjects Count English Physics for Chemical Comprehension and Engineers Composition Islamic Studies N-7 HUM-Huma Ijaz N-1 Math-Imran Zulfiqar Chem-Amjad Riaz Cheema Chemical Process Principles I N-11 Calculus I 2 Chemical Process Principles I 2 English Comprehension and Composition 2 Islamic Studies 2 Lab-Engineering Drawing 2 Lab-Physics for Chemical Engineers 2 Physics for Chemical Engineers 2 Tuesday Monday English Comprehension and Composition Calculus I N-7 N-12 Chem-Amjad Riaz N-11 Wednesday Phy-Dr. Saif Ur Rehman Physics for Chemical Chemical Process Engineers Principles I N-18 HUM-Dr. Musferah Mehfooz N-19 Math-Imran Zulfiqar Cheema Dr. Saif Ur Rehman / Dr. Ishrat Sultana Thursday Islamic Studies Calculus I Lab-Physics for Chemical Engineers N-15 N-3 Applied Physics Lab Chem-Muhammad Imran Rafiq Friday Lab-Engineering Drawing PC Lab-C Lessons/week 14 Timetable generated:11/13/2014 aSc Timetables Final Time Table - Fall 2014 ( v 20141113-1130 ) CIIT_Lahore FA14-BEC-B (Semester 1) (DDP) 2 10:00 - 11:30 Math-Syed Tahir Raza Rizvi 1 8:30 - 10:00 HUM-Huma Ijaz 3 11:30...

Words: 31997 - Pages: 128

Premium Essay

Ma3110: Week 3 Measures of Center Exercise 3.1

...numbers on the active players’ jerseys are 29, 41, 50, 58, 79,…, 10 (listed in alphabetical order of players’ names). Does it make sense to calculate the means of those numbers? Why are why not? No because it doesn’t make sense to calculate jersey numbers but stats maybe 2. The Fair Isaac Corporation (FICO) credit rating scores obtained in a simple random sample are listed below: 714 751 664 789 818 779 698 836 753 834 693 802 a. Find mean, median, mode, and midrange. 714+ 751+ 664+ 789+ 779+ 698+ 836+ 753+ 834+ 693+ 802= 9131 Mean 760.9 Median 766 Mode 0 Midrange 766 b. As of this writing, the reported mean FICO score was 678. Do these sample FICO scores appear to be consistent with the reported mean? No it was much higher 3. A student earned grades of 92, 83, 77, 84, and 82 on her five regular tests. She earned grades of 88 on the final exam and 95 on her class projects. Her combined homework grade was 77. The five regular tests count for 60% of the final grade, the final exam counts for 10%, the project counts for 15%, and homework counts for 15%. What is her weighted mean grade? Grades 92+ 83+ 77+ 84+ 82/ 5 = 83.6 Regular grades 83.6 x0.60= 50.16 Final exam 88 x 0.10 = 8.8 Class project 95 x 0.15 = 14.25 Homework 77 x 0.15 = 11.55 Her weighted mean grade is 84.71 4. Bao Xishun is the world’s tallest man with a height of 92.95 in. (or 7 ft. 8.95 in.). Men have heights with a mean of 69.6 in. and a standard deviation of 2.8 in. a. Convert...

Words: 347 - Pages: 2

Premium Essay

Self-Study Report

... Students enrolled on the COE program are treated in as regular students, studying according to the approved schedules and course structures and subject to the Education Ministry rules and regulations. All students join the COE program as undergraduates; study a preparatory year of two semesters. The preparatory year is treated as a part of the student’s official study. After completing the preparatory year, students join the COE program. The COE Dept. is improving on public visibility across the Kingdom. It is also increasing visibility among academic communities. Efforts are also being made to increase visibility though the press and Web. In recognition of visibility importance, COE Dept. (through the College) has embarked on a project to realize a better image in the context of its Strategic Plan (The meaning of this sentence is not clear!!). COE Department is forward-looking as is evident through the commitment of its dedicated academic faculty members and staff sharing the responsibility of coherence of curriculum, integrity of academic process, and the continuous improvement of the college. The pursuit of COE Dept. vision and mission, serving the community through excellence in education, science, drives the COE Dept. to achieve competitiveness, national prominence and visible international presence. C. Options Award granted on completion of the program is B.Sc. Degree in Computer Engineering. The program has two options starting from the third year (Junior)....

Words: 10169 - Pages: 41

Free Essay

Swaf

...Prompt #11:      I believe that the eighty/ twenty rule that Malcolm Gladwell discusses in the novel, meaning that eighty percent of work is done by twenty percent of people, is very relatable to the real world. This 80/20 rule is known mainly as Pareto's Law. Founded by Vilfredo Pareto in 1906, the formula was established to describe the inequal distribution of wealth in Pareto's home country of Italy. He stated that 20% of the people owned 80% of the countries wealth and hence the eighty/ twenty rule was established. The 80/20 rule has been changed from its strictly economical meanings to purely mean that in anything a few (20 percent) are vital and many(80 percent) are trivial. Two modern day examples where this rule is clearly visible are in the classroom and also in athletics.       In sports the eighty twenty rule could be displayed in many different ways. One example would be the salaries of players. If you look at the roster of the New York Knicks, a basketball team in the Eastern Conference of the NBA, you will find that they have had a total of 21 players this season. Between those 21 athletes the team as a whole was set to make over eighty-one million dollars. If you look at the individual player salaries though you will find that not all players make an even amount. In fact, the top four earners on the team (Carmelo Anthony, Amare Stoudemire, Andrea Bargnani, and Jose Caledron) were set to earn almost 63 million dollars alone. That's almost 77% of the teams total...

Words: 1296 - Pages: 6

Premium Essay

Introduction to Marketing

...pricing, promotion, sales force management and competitive analysis. 211. (MKTG773) Consumer Behavior. (C) Cutright, Reed. Prerequisite(s): MKTG 101. This course is concerned with how and why people behave as consumers. Its goals are to: (1) provide conceptual understanding of consumer behavior, (2) provide experience in the application of buyer behavior concepts to marketing management decisions and social policy decision-making; and (3) to develop analytical capability in using behavioral research. 212. (MKTG756) Marketing Research. (C) Shen, Eliashberg. Prerequisite(s): MKTG 101, STAT 101. Students are highly encouraged to take statistics in the semester immediately preceding this course. This course examines the role of marketing research in the formulation and solution of marketing problems, and the development of the student's basic skills in conducting and evaluating marketing research projects. Special emphasis is placed on problem formulation, research design, alternative methods of data collection (including data collection instruments, sampling, and field operations), and data analysis techniques. Applications of modern marketing research procedures to a variety of marketing problems are explored. 221. New Product Management. (C) Armstrong, Adams. Prerequisite(s): MKTG 101; NOTE: Students may not take this course and MKTG232 for credit. 0.5 c.u. One-half term....

Words: 6959 - Pages: 28

Premium Essay

Psy 302 Complete Course Psy302 Complete Course

...PSY 302 Complete Course PSY302 Complete Course Click Link for the Answer: http://workbank247.com/q/psy-302-complete-course-psy302-complete-course/22110 http://workbank247.com/q/psy-302-complete-course-psy302-complete-course/22110 PSY 302 Module 1 Assignment 1: Autobiography * A brief paragraph introducing yourself to your classmates. Include information such as your name, location, profession, how long you have been at Argosy, and your favorite psychology course so far. * From the list below, select a topic you would like to conduct a study on. If you wish to explore a topic that is not on this list, please check with your instructor for permission. * A short discussion of the topic area, such as the meaningfulness of the topic, how the topic might be embedded within a larger conceptual framework (e.g., a topic such as how the size of the jackpot affects lottery decisions might be under the broader umbrella of risk-taking behavior), where to go to find out more when researching the topic, and how you could elaborate on a topic by looking at moderator variables or exceptions. List of potential topics: * Media's influence on aggression * Media's influence on body image * Effective treatments for chemical dependency * Driving safety and types of distractions * The role of introversion/extraversion on marital bliss or employee performance * Suggestibility: do television ads change behavior? * Factors affecting career choice ...

Words: 2133 - Pages: 9

Premium Essay

How to Live Longer?

...How to live longer? An analysis of the impact food consumption and healthcare may have on life expectancy. Econ413 SP2011 Introduction Life expectancy is important not only to individuals but also to the nation. To individuals, longer life expectancy gives people more time in their lives to do things they want and gives them opportunity to see their children and grandchildren grow up. To the nation, studying life expectancy helps the government plan for pension benefits and contributions. I want to analyze the impact of food consumption on life expectancy because today people care about eating healthier and America’s eating habit has been criticized for the consumption of too much unhealthy food. In order to measure the country’s eating habits, I used data over the past 40 years that includes annual meat consumption, fish consumption, milk consumption, fruits and vegetable consumption and etc. I will analyze the life expectancy over 1970-2008 and the corresponding food consumptions over that time period. In addition to eating habits, I believe that the nation’s healthcare spending and GDP are important determinants of life expectancy. Excluding them will result in a biased model. Therefore, I also included healthcare and GDP as independent variables in my analysis. Prior Research and Theory In the past few years, life expectancy and its determinants have been widely discussed in economics. In the U.S., life expectancy rapidly increased in the past century and led...

Words: 2986 - Pages: 12

Free Essay

Vested Rights

...Zoning Out: Vested Rights Can Cost You Susan K. Burkhart skb@cshlaw.com Vested Rights What Are They? Analogy if you do personnel law: • At will employment – no constitutional protection to continued employment because you have a mere expectation of continued employment • Contract employment – have constitutional protection to continued employment because there is a protected “property interest” at stake Essential rule of zoning and vested rights law: • A zoning ordinance is not a contract between the town and its citizens; a zoning ordinance, including a zoning classification, is subject to repeal or change at the will of the governing body – subject only to “vested rights” of the citizens in the town. McKinney v. City of High Point, 239 N.C. 232, 79 S.E.2d 730 (1954). /_______/_______/_______/_______/_______ 1 2 3 4 5 1. 2. Landowner bought land – land zoned “GB” in 2000 Landowner confirmed at meeting with Town Planning Director in 2005 that car dealership permitted under GB zoning Landowner spent $100,000 for architect, engineering fees, etc., went to architectural review meetings with Town and obtained architectural approval from Town for proposed building Landowner obtained building permit 3. 4. 5. Landowner acquired building permit and spent $50,000 in engineering costs and other fees in reliance on the permit Two Methods for Obtaining Vested Rights: • Statute • Common law - created by case law (written appellate decisions) rather than...

Words: 2019 - Pages: 9

Premium Essay

Do Mind Your Mind

...Econometrics (Economics 360) Syllabus: Spring 2015 Instructor: Ben Van Kammen Office: Krannert 531 Office Hours: Friday, 10 a.m.-noon Email: bvankamm@purdue.edu Meeting Location: KRAN G010 Meeting Days/Times: TR 1:30-2:45 p.m. (001) TR 3-4:15 p.m. (002) TR 4:30-5:45 p.m. (003) Course Description This is an upper division economics course required for students pursuing a BS in economics. It is one of the few courses that explicitly covers empirical methods, i.e., the analysis of observed economic behavior in the form of data. Empirics stand in contrast to theory, e.g., micro and macro, about how agents behave. Despite this under-representation, empirical analysis comprises a large part of economists’ workload and is one of the most practical skills that an economics student can learn. Course Objectives In this class students will: 1. perform statistical and practical inference based on the results of empirical analysis, 2. identify useful characteristics of estimators, e.g., unbiasedness, consistency, efficiency, 3. state predictions of theoretical economic models in terms of testable hypotheses, 4. model economic relationships using classical methods, such as Ordinary Least Squares, derive the properties of estimators related to these methods, and 5. perform estimation using methods discussed in class using software, 6. perform diagnostic tests that infer whether a model’s assumptions are invalid, 7. evaluate empirical models based on whether their resulting estimators...

Words: 2067 - Pages: 9

Free Essay

Five Dysfunctions of a Team

...never guessed the trust would be the number one cause of dysfunctions in a team. However, after reading just a couple pages it made complete sense. Trust is the foundation for real teamwork to take place. If team members cannot be learn to be vulnerable and open with each other trust will never take place. All team members have to learn to be open about their success and failures in order to operate as a high performing team. If some team members withhold information or keep it to themselves to make themselves look productive that will destroy the trust with other members of the group. If everyone can be vulnerable with each other instead of trying to guard or protect themselves they will be more productive as a group and get the projects completed. Once trust is achieved within the group it’s easier to move on and conquer the next dysfunction which is fear of conflict. The team members must learn how to disagree with each other constructively and respectfully. Each team member must be able to express themselves and know they have been heard without feeling dismissed. Their ideas need to be heard but they also...

Words: 2086 - Pages: 9

Premium Essay

Does Hip Hop Have a Negative Influence on Young People

...Research Project ‘Does Hip-Hop have a negative influence on young people?’ Introduction This research project will explore the impact that hip-hop culture has on young people in society today. From examining current literature and conducting a quantitative study the project will aim to answer the question ‘does hip hop have a negative influence on young people?’ There has been lots of controversy surrounding this subject in recent years. Some say hip-hop is responsible for the rise in youth violence whilst others say hip-hop is just an accurate representation of a violent society. This paper will give an insight into what young people in the Teesside area who live and breathe this popular culture think. Action Plan Project Management Plan Research Project |   | Timeline | Start | Finish | Weeks Needed | Task number | Task detail |   | 1 | Agree Topic with supervisor | On-going | 2 | Literature review | 15/01/2015 | 05/02/2015 | 3 weeks | 3 | Decide on research design | 20/01/2015 | 27/01/2015 | 1 week | 4 | Develop Data Collection Tools | 06/02/2015 | 20/02/2015 | 2 weeks | 5 | Distribute/Conduct Data Collection Tools | 23/02/2015 | 02/03/2015 | 2 weeks | 6 | Collect and Analyse Data | 02/03/2015 | 16/03/2015 | 2 weeks | 7 | Draw conclusions | 16/03/2015 | 30/03/2015 | 2 weeks | 8 | Write Report | 20/03/2015 | 15/04/2015 | 3 weeks | Sources Both primary and secondary sources of research will be undertaken throughout this project. The secondary...

Words: 2499 - Pages: 10

Premium Essay

Marketing Plan

...Final Project Part 2-Marketing Plan Cathy Williams South University Online 5/09/16 Dr. Cale Final Project Part 2- Marketing Plan Introduction The Doggy Land Daycare marketing plan consist of all matters from pricing to implementation strategies. Utilizing a marketing dashboard will assist in understanding performances and assess the efficiency of a marketing plan. Budget estimates will include estimated forecasted sales, direct cost of sales and the marketing expense budget. I. Pricing Strategy Doggy Day Land will utilize premium pricing/differentiating strategy to encourage great perception to the buyers. This is because the buyers will regardless that the more the service cost the better the service is. Sometimes this is done to exploit the inclination for consumers to assume that having an expensive, reliable, desirable quality or distinction without justification. Even though when it comes to the consumer trusting someone to take care of their dog the way Doggy Day Land will do along with the extensive services provided will portray the true reputation Doggy Day Land intends to uphold (Bangs, 1998). II. Breakeven Analysis This analysis shows the number of units that need to be sold in order to show a zero profit. This tells you when the services you provide stop costing the company money and start producing a profit. The graph below will help in the understanding of the analysis(Kotler, 2011). Q = Break-even Point, i.e...

Words: 987 - Pages: 4

Premium Essay

Oba 335 Midterm

...Operation Strategy: Specifies the means by which operations implements corporate strategy * Corporate strategy: Provides an overall direction and framework for carrying out all the organization’s function (Environmental scanning, core competencies, core processes, and global strategy) * Competitive capabilities: current performance along those dimensions that a process or supply chain actually has * Order Winner: a criterion the customers use to differentiate the services / products of a firm from those of others * Price (low prices), Flexibility (large variety), Quality (in-stock merchandise availability, customer service), Time * Order Qualifier: the minimum level of performance of an order winner that is required for a firm todo business in a market segment. Quality (Products and services. Focuses on quality) Process Strategy * Process Decision: 1) Process Structure (Customer-contact position [services]), 2) Customer Involvement (low involvement, high involvement), 3) Resource Flexibility (Specialized, enlarged), 4) Capital Intensity (low and high automation) * Process Architecture: 1) Job process: low volume, high customized to specific needs of the customers. The process has highly flexible flow, with considerable divergence in production steps (flexible resources. Resources are organized by resource type, but not by product type. Each order is treated as a single unit, a job). Ex: Nike workshop for sponsored athletic shoes 2) Batch process:...

Words: 1106 - Pages: 5