Stat 201 Project 1 Fall 2015 Due Wednesday September 16 2015 1 minute before midnight submitted to Blackboard View the YouTube video at https www youtube com watch v u UIfAvAYus for instructions on how to submit your finished work to Blackboard 37 TOTAL POINTS In this project you will summarize a subset i e a sample of the data collected from a survey of Stat 201 students from Fall 2013 Projects must be typed and organized You will be including a substantial amount of output within your write up INCLUDE ONLY THE OUTPUT NECESSARY TO ANSWER THE PROJECT QUESTIONS Clearly label what question and part you are answering so we grade it correctly Please see the JMP tutorials at http web utk edu cwiek 201Tutorials for instructions on how to get JMP to perform most tasks Use the 4th page of this project for guidance in which tutorial to look at for each question in the project 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 stapled to the back of your write up You can get help in the Stat Lab with specific questions about the project You can NOT ask a Stat Lab worker to read your entire project for suggestions on what to change 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 Getting Started The data are found in the file Stat 201 Fall 2015 Project Data jmp which is located in your Pearson s Mylab Mastering account under the Project Files tab In real life situations researchers would use all of 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 should 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 2015 Project Data You can save a copy of this file by selecting the File option from the toolbar and choosing Save As tab JMP will prompt you to keep the same name which is acceptable or you can rename it to something like Stat Project1 My Data Remember to save this file to your own computer copy it to a memory stick or e mail it to yourself for later use if you are using a computer in the library 1 Please take note that on page 8 of the instructions there is a page titled Writing a Good Stat 201 Project Report This page is given as a series of guidelines for the written part of your report One of the course objectives is for you to not only use statistical software to produce statistical output but to also be able to draw conclusions based on the computer output and effectively communicate those conclusions 1 a Identify a categorical ordinal and quantitative variable in the data set NOTE Do not use the variables in the example project on page 5 3 points b Choose a categorical variable with at least four levels but less than ten levels For example Q01 Gender only has two levels Male and Female and the variable Q21 SpendOther has as many as 29 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 NOTE Do not use the variable in the example project on page 5 3 points c Consider the two categorical variables Q10 MissionTrip Have you ever participated in a religious affiliated mission trip or community service trip yes or no and Q35 UseCoc Have you ever used cocaine yes or no Briefly describe the relationship you expect to see between these two variables Note there is no right answer here it s just your opinion 1 point d Use JMP to construct a Mosaic plot and contingency table for these two variables The contingency table in your output should display Count and Row values only 3 points e Explain the relationship that the Mosaic plot shows 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 3 points f Did the Mosaic plot verify or refute your expectation in part c Do you believe that the association that 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 2 points 2 a In this question you will make a histogram of the variable Q36 AgeMarry This represents responses to the question At what age do you plan to get married In the full question on the survey it explained to type the age you first got married if you have ever been married and to type 999 if you don t plan to get married You don t want to include the 999 values in your analysis so you need to do a little data cleaning first Watch the 43 second YouTube video at http tinyurl com JMPrecode to see how to easily re code data Using the technique from this video re code the 999 values to a period and this will change the 999 values to missing data Note this step is critical to do as your answers to the next few questions won t make much sense if the 999 values are in place and you may lose additional points in those questions as well if you fail to do this 3 points 2 b c d e f Generate a histogram of your re coded Q36 AgeMarry 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 Also within your document report the mean median and standard deviation 4 points Next you will explore possible differences to the …
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