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Stat 201 – Project 1 – Fall 2018Due Thursday, September 27th, 2018*(11:59 PM in the evening, submitted to Canvas)*Assignments submitted by *11:59pm on Tuesday September 25th will receive +7 bonus pointsLate projects should be counted off 15 points per day late. In this project, you will explore a subset (i.e., a sample) of the data collected from the survey that most Stat 201 students completed this semester. See pages 6-8 for a complete list of the questions asked in this survey. You will be including a substantial amount of output within your write-up. INCLUDE ONLY THE OUTPUT NECESSARY TO ANSWER THE PROJECT QUESTIONS. ANY JMP WORK YOU DO TO ANSWER A QUESTION MUST BE PROVIDED AS A SCREENSHOT.Getting Started: The data are found in the file “Stat 201 Fall 2018 Survey Results.jmp”, which is located on the Stat 201 Webpage under the “Projects” tab. This file contains 806 responses. In real life situations, researchers would use all the data they have available after conducting a survey. For this project, however, you will get JMP to help you take a random sample from the entire data set so that each student will have different results, and therefore will be turning in a UNIQUE project. The size of the random sample must be 500 plus the last two digits of your UT student ID number. For example, if your UT student ID number is 000314791, you will take a random sample of size 500 + 91 = 591. When you create your random sample from the original JMP file, JMP creates a new file that will be named “Subset of Stat 201 Fall 2018 Survey Results”. You should immediately save a copy of this file by clicking the “File” menu and choosing “Save As…”. JMP will prompt you to keep the same name, which is acceptable, or you can rename it to something like “Stat Project1 – My Data”Taking Screenshots: Although there are many ways to get JMP graphics into a written presentation, we want you to use the “screen shot” method in all cases. Please see the video at for instructions on how to take selective screen shots on a PC or a Mac. Clearly label what question and part you are answering so your project is graded correctly! See page 5 for an example project format.Tutorials and Write-up: See the JMP tutorials at and for instructions on how to get JMP to perform most tasks. Use page 4 of this project for guidance in which tutorial to look at for each question in the project, as well as important “notes” to further help you with certain JMP tasks. In every question that asks you to produce output from JMP, we expect the output you produce to answer the question to be within the write-up. You should put this output immediately after your comments regarding that specific part of the assignment (i.e., not just a series of printouts from JMP at the back of your write-up). You can get help in the Stat 201 Lab with specific questions about the project. You can NOT ask a Stat 201 Lab worker to read your entire project for suggestions on what to change. Your finished work must be submitted within Canvas (see “Assignments”), and must be a Microsoft Word document (.doc or .docx).Important note for Windows (PC) users: Open JMP, click on the File menu and select Preferences. Then, on the left, select Windows Specific. About three-fourths of the way down this window, where it says Auto Hide Menu and Toolbars, click the drop down arrow and select Never. Click OK, then close this window. You should only have to do this once, and Mac users do not need to do this.JMP and Hodges Library computers: Using JMP installed on your own computer is much simpler than using JMP on a library computer! If you choose to use a computer in the library to do your project, be sure to first read the document “Using JMP in the Library”, found on the Stat 201 webpage under the “Projects” tab. Also, you will need to save your project and your random sample subset file to a location you can access later, such as a memory stick. Or, you could e-mail these files to yourself for later use.Writing a Good STAT 201 Project Report: Please take note that on page 9 of this document there is a page titled “Writing a Good Stat 201 Project Report”. This page contains a series of guidelines for the written part of your report. A portion of your grade (9%) is related to following these guidelines.Project QuestionsQuestion One1.Using the full JMP data file, get JMP to select a random sample of size 500 plus the last 2 digits of your student ID number (as described earlier in this document). Report the size of your sample. Scroll to the bottom of your subset data file, and take a screen shot of the far-left hand portion of your file that includes the first column and at least the last 20 rows. (See the example on page 5 of this project.) Save this JMP file, and use it for all remaining questions. (10 points)Question Two2.a)Choose a categorical variable with at least three levels (but no more than five levels). For example, “Q03 – Born in TN” only has two levels, Yes and No, and the variable “Q14 – Major” has over 200 levels, so these variables would not be an option. Use JMP to summarize the variable you choose in a bar chart and a pie chart. Get JMP to display the percentage that each bar and pie “slice” represents. Interpret your graphics. NOTE: Do not use the variable in the example project on page 5. (9 points)b)Consider only the two categorical variables “Q07 - Greek Life” and “Q5 - Distance from Campus”. Read the complete survey questions for these two variables (page 6) and use the possible answers to these questions in your answer for question 2b). Prior to producing any output, predict if a relationship exists between these two variables. Briefly describe the nature of the relationship you expect to see between these two variables. NOTE: there is no “right” answer here, it’s just your opinion. (3 point)c)Use JMP to construct a Mosaic plot and contingency table for these two variables, placing “Q5 - Distance from Campus” on the X-axis. The contingency table in your output should display “Count” and “Row %” values only. (12 points)d)Using the mosaic plot, explain the relationship between these two variables. In your explanation, you must mention some of the “Row %” values. (Notice that the “Row %” values are what the heights of the bars in the Mosaic plot are based on.) (9 points)e)Did the Mosaic plot verify or refute your prediction in part (b)? Do you believe the association you see between these two variables is “strong”? Briefly explain your answer. NOTE: the word “strong” is open to interpretation, so there is no right answer for this, it’s just your opinion. (6 points)Question Three3.In this question, you will explore the variable “Q20 - Weekly Hours Work”. Read the full survey question description for this variable (page 6).a)Generate a histogram of this variable. Include the Quantiles and Summary Statistics in your output. Your histogram must be displayed in a horizontal layout and have a count axis. Describe the shape of your histogram, and comment on any unusual features or outliers you see (if you don’t see any unusual features or outliers, mention that). Within your document, report and interpret in context the mean, median and standard deviation. (12 points, make sure to interpret what you report here)b)Next you will explore possible differences for answers to this question depending on if they are in Greek life “Q07 - Greek Life”. Prior to producing any output, which group do you think will have more weekly hours worked: those involved in Greek life or those not involved. Provide a guess of the difference (in hours) you expect to find between the average weekly hours worked between the two groups. There is no “right” answer to this question, but you must provide a logical explanation for your conclusion. (3 point)c)Generate separate histograms, as well as the Quantiles and Summary Statistics output for these two groups. As in part (a) above, both histograms must be displayed in a horizontal layout and have a count axis. The two histograms must have the same horizontal axis scale. Report and interpret in context the mean, median and standard deviation for each group. (12 points, make sure to interpret what you report here)d)Produce side-by-side box plots for this variable (one box plot for each group) as described in the JMP tutorial “Graphical Display of Quantitative Data – Side-by-Side Box Plots” (at or ). Give a brief interpretation of the two box plots and the differences between them. (6 Points)e)How big was the actual difference between the average weekly hours worked of these two groups??Was your suspicion (in part b) confirmed or refuted???Briefly explain your answer. How “close” was your guess to the actual difference you found??NOTE: the word “close” is open to interpretation. There is no right. It’s your opinion.? (3 point)Remaining points distribution:Project organization and flow (6 points)Projects should look neat and organized. Use the crop tool in Word if you need to improve screenshots. Your project should read like a report without the prompt of each question.Use of the guidelines on page 9 – (9 points)The opening paragraph on the project should give a short summary (3-5 sentences) of the analysis they’re about to read. The closing paragraph should summarize interesting finds and discuss any ideas regarding further data collection and analysis. Make sure to use an opening and closing that is revelant to this project and your data.JMP Tutorials Needed for Each QuestionQuestionHeadingTutorialNotes1Miscellaneous TopicsTaking a Simple Random Sample2aGraphical Display of Categorical DataBar Chart and Pie ChartScroll down in this tutorial to see instructions for “unaggregated data”, which is what you are working with.2cGraphical Display of Categorical DataMosaic PlotTo get the contingency table to display “Count” and “Row%” only, uncheck everything except “Count” and “Row%” in the drop-down menu next to the “Contingency Table” output. Also, since your data are “unaggregated”, you should place nothing in the “Freq” box.3aGraphical Display of Quantitative DataHistogram and Box Plot3cGraphical Display of Quantitative DataHistogram and Box PlotAfter you place “Q20 - Weekly Hours Work” in the Y,Columns box, click on “Q07 - Greek Life” and then click the “By” button to produce separate output for the two groups. To get the histograms on the same horizontal axis scale, select “Uniform Scaling” within the red drop-down arrow on the left side of the top title bar of each histogram.3dGraphical Display of Quantitative DataSide-by-Side Box PlotsEXAMPLE FORMAT – Showing Question 1 and 2aSTAT 201 Project #1 – Fall 2018 – Learning about Fall 2018 Stat 201 StudentsSubmitted by Jane Q. StudentNote: Your first three to five sentences should address item #1 on page 9 of this document. 1. Since the last two digits of my student ID number are 22, I took a random sample of size 522.2a.The following pie chart and bar chart show “Q16 – Family Income Level”. From these graphics, we can tell that the majority of Stat 201 students reported that their families have middle class (40.2%) or middle/upper class (38.7%) income levels. The lowest levels reported were upper class (6.3%) and lower class (3.1%) income levels.STAT 201 SURVEY – Fall 2018FOR REFERENCE ONLY - FULL TEXT OF QUESTIONS ASKEDQ0 Which section of Stat 201 are you in?Q1 What is your gender?Q2 How old are you (In years)?Q3 Were you born in Tennessee?Q4 What is your relationship status?Q5 How far do you live from campus?Q6 What was your high school GPA?Q7 Are you a member of a fraternity or sorority??Q8 Are you an only child, oldest child, middle child or youngest child? Pick one answer that best describes your birth order.Q09 Have you ever broken a bone?Q10 Do you have a Roth IRA?Q11 How many pets do you own?Q12 Estimate how much you spend on your pets per year; include veterinary expenses, food, toys, treats, grooming, etc. Enter zero if you have no pets.Q13 How many hours per week do you spend reading assignments from textbooks that your instructors assign Include all classes, not just Stat 201.Q14 What is your major?Q15 How many credit hours are you taking this semester?Q16 How would you identify the economic level of your immediate family?Q17 Are you in the honors program at UT?Q18 What do you expect your starting annual salary (in US dollars) to be when you obtain a college degree?Q19 Do you (or your parents) plan on, or have you (or your parents) already, taken out student loans to pay for your college expenses? ?Q20 How many hours a week do you currently work at a job? If you are not employed, please put 0.Q21 How many languages can you speak fluently? This includes your native language. ?This is the language you first learned.Q22 How would you classify your views on economic political issues?Q23 How would you classify your views on social political issues?Q24 What should happen to Confederate statues?Q25 Should the United States stop making pennies? (Eliminate the penny)Q26 Will humans step foot on Mars?Q27 Select the option below that completes the following sentence in a way that best describes your opinion. ?"Climate change on Earth:Q28 Which of these do you believe to be closest to the truth regarding life on Earth?Q29 Have you ever smoked marijuana?Q30 Do you think marijuana should be legalized at the federal level (For the whole US)?Q31 Should states have the ability to regulate what couples can marry? ?(i.e. defining marriage as only one man and one woman)Q32 Age when you had your first alcoholic beverage. IMPORTANT- Don't count sips or communion. ?This should be an actual drink of alcohol.STAT 201 SURVEY – Fall 2018FOR REFERENCE ONLY - FULL TEXT OF QUESTIONS ASKEDQ33 When you eat out at a restaurant that involves a waitress or waiter, what percent do you usually tip? Enter response as a whole number with no decimals for a percentage from 0 to 100.Q34 Which statement best describes you behavior when you drink water on campus?Q35 What is the most you've paid for a single coffee based drink? ?This includes any size, additions and tips given for the drink.Q36 Do you use any tobacco products??Q37 Is vaping a safer alternative to smoking?Q38 How many times have you cheated in college? This includes looking at another test during an exam, taking another student's work and presenting it as your own and other forms of academic dishonesty.Q39 How many times did you cheat in high school? This includes looking at another test during an exam, taking another student's work and presenting it as your own and other forms of academic dishonesty.Q40 On an average night, how many hours of sleep during the school year do you usually get?Q41 What is the longest number of consecutive hours you've stayed awake?Q42 Have you ever been arrested?Q43 Approximately how many text messages do you send a week?Q44 Approximately how many text messages do you send on the weekend?Q45 On a typical school day last semester, approximately how many text messages would you send during class (while you were attending class)?Q46 What is your favorite app on your phone?Q47 What percentage of your income do you believe you should save in your 20s? Enter response as a whole number with no decimals for a percentage from 0 to 100.Q48 Have you ever purchased perishable food items online?Q49 In the past 6 months, have you purchased a product based on a TV commercial??Q50 How many on-line purchases (not counting music downloads) have you made in the last week?Q51 How often do you use coupons when you shop (not including on-line shopping)??Q52 Roughly, how many selfies have you posted on social media in the past month?Q53 How much are you will to pay to see your favorite musician in concert?Q54 What do you think of?Kanye West?as an individual?Q55 What do you think of?Steven Colbert?as an individual?Q56 Have you ever watched most or all of a live sporting event on a smart phone or tablet?Q57 Have you ever gone to a physical store to check out the features of a product, with the intention of purchasing the item online later??Q58 How do you usually to listen to music?Q59 Have you ever reviewed a business or product on social media (i.e. Twitter, Facebook, ect.)?Q60 Are you "friends" on Facebook with one or more of your parents (include step-parents in your answer)?STAT 201 SURVEY – Fall 2018FOR REFERENCE ONLY - FULL TEXT OF QUESTIONS ASKEDQ61 Approximately how many friends do you have on Facebook? If you don't have a Facebook account, answer 0 for this question.Q62 Approximately how many people have you defriended on Facebook. If you don't have a Facebook account, answer 0 for this question.Q63 In a typical week last semester, how much time (in hours) did you spend on "social media"? Include both time reading social media and time communicating with social media.Q64 The Tennessee Vols are scheduled to play 12 football games in the 2018 season (I.e., not including the SEC championship game, and not including a bowl game). Number of games won reportedQ65 Did you lie at any point on this survey? Writing a Good STAT 201 Project Report Writing a report to your boss about a statistical analysis he has asked you to do is very different than writing a novel, or writing to your Statistics instructor. What does it take to write a good project report? Of course, it’s important to know your audience when you write anything.Let’s assume you are writing your project report for some busy executives in the company, and they have asked you to answer the questions in the project. They are very intelligent people, but they are not “Statisticians”. Assume that these executives have had some basic statistical education, but perhaps a long time ago. Keep this in mind as you complete your project.Below are some guidelines for writing an effective project report:1.The first sentence or two of your report should “orient” the reader. What is this document about? Who is it from? On what date did you complete the analysis?2.Answer each question on the project instructions using correct sentence structure, spelling and grammar. Sentences should be succinct and clear. You can assume the executives have a copy of the questions they asked.3.Avoid using "statistical jargon". Explain the results of the analysis in a way that the executives can understand it.4. As explained in the project instructions, graphics from JMP and/or Excel that address the project question must be imbedded within the document, at the point where the executives need to see them. Don’t make them hunt for the output at the back of your report.5. Avoid including discussion and/or graphics within the report that have no relevance to the question being addressed.6.Wrap-up and sign off: some sort of closing sentence regarding how happy you were to answer the executives’ questions, and demonstrate your willingness to do similar work in the near future. The word “Sincerely” or “Regards”, followed by your name is a nice touch at the very end!rev. 2015-01-22 ................
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