STAT200 Assignment #2 - Descriptive Statistics Analysis Write.docx
- 1. STAT200: Assignment #2 - Descriptive Statistics Analysis Writeup - Template Page 1 of 3 University of Maryland University College STAT200 - Assignment #2: Descriptive Statistics Analysis and Writeup Identifying Information Student (Full Name): Class: Instructor: Date: Introduction: Use the same scenario you submitted for the first assignment with modifications using your instructor’s feedback, if needed. Include Table 1: Variables Selected for the Analysis you used in Assignment #1 to show the variables you selected for analysis.
- 2. Table 1. Variables Selected for the Analysis Variable Name in data set Description Type of Variable (Qualitative or Quantitative) Variable 1: “Income” Annual household income in USD. Quantitative Variable 2: Variable 3: Variable 4: Variable 5: Data Set Description and Method Used for Analysis: Results: Variable 1: Income Numerical Summary.
- 3. STAT200: Assignment #2 - Descriptive Statistics Analysis Writeup - Template Page 2 of 3 Table 2. Descriptive Analysis for Variable 1 Variable n Measure(s) of Central Tendency Measure(s) of Dispersion Variable: Income Median= SD = Graph and/or Table: Histogram of Income (Place Histogram here) Description of Findings. Variable 2: (Fill in name of variable) Numerical Summary. Table 3. Descriptive Analysis for Variable 2 Variable n Measure(s) of Central Tendency Measure(s) of Dispersion
- 4. Variable: Graph and/or Table. (Place Graph or Table Here) Description of Findings. Variable 3: (Fill in name of variable) Numerical Summary. Table 4. Descriptive Analysis for Variable 3 Variable n Measure(s) of Central Tendency Measure(s) of Dispersion Variable: Graph and/or Table. (Place Graph or Table Here) STAT200: Assignment #2 - Descriptive Statistics Analysis Writeup - Template Page 3 of 3
- 5. Description of Findings. Variable 4: (Fill in name of variable) Numerical Summary. Table 5. Descriptive Analysis for Variable 4 Variable N Mean/Median St. Dev. Variable 4: Graph and/or Table. (Place Graph or Table Here) Description of Findings. Variable 5: (Fill in name of variable) Numerical Summary. Table 6. Descriptive Analysis for Variable 5 Variable n Measure(s) of Central Tendency Measure(s) of Dispersion
- 6. Variable: Graph and/or Table. (Place Graph or Table Here) Description of Findings. Discussion and Conclusion. Briefly discuss each variable in the same sequence as presented in the results. What has the highest expenditure? What variable has the lowest expenditure? If you were to recommend a place to save money, which expenditure would it be and why? Note: The section should be no more than 2 paragraphs. STAT200 Introduction to Statistics Dataset for Written Assignments Description of Dataset: The data is a random sample from the US Department of Labor’s 2016 Consumer Expenditure Surveys (CE) and provides information about the composition of households and their annual expenditures (https://www.bls.gov/cex/). It contains information from 30 households, where a survey responder provided the requested information; it is all self-reported
- 7. information. This dataset contains four socioeconomic variables (whose names start with SE) and four expenditure variables (whose names start with USD). Description of Variables/Data Dictionary: The following table is a data dictionary that describes the variables and their locations in this dataset (Note: Dataset is on second page of this document): Variable Name Location in Dataset Variable Description Coding UniqueID# First Column Unique number used to identify each survey responder Each responder has a unique number from 1-30 SE-MaritalStatus Second Column Marital Status of Head of Household Not Married/Married SE-Income Third Column Annual Household Income Amount in US Dollars SE-AgeHeadHousehold Fourth Column Age of the Head of Household Age in Years SE-FamilySize Fifth Column Total Number of People in Family (Both Adults and Children) Number of People in Family USD-Annual Expenditures Sixth Column Total Amount of Annual Expenditures Amount in US Dollars
- 8. USD-Housing Seventh Column Total Amount of Annual Expenditure on Housing Amount in US Dollars USD-Electricity Eighth Column Total Amount of Annual Expenditure on Electricity Amount in US Dollars USD-Water Ninth Column Total Amount of Annual Expenditure on Water Amount in US Dollars How to read the data set: Each row contains information from one household. For instance, the first row of the dataset starting on the next page shows us that: the head of household is not married and is 59 years old, has an annual household income of $94,929, a family size of 2, annual expenditures of $55,247, and spends $18,483 on housing, $1,451 on electricity, and $546 on water. UniqueID# SE-MaritalStatus SE-income SE-AgeHeadHousehold SE-FamilySize USD-AnnualExpenditures USD-Housing USD-Electricity USD-Water 1 Not Married 94929 59 2 55247 18483 1451
- 9. 546 2 Not Married 96621 54 2 55746 18149 1455 540 3 Not Married 96664 53 3 55558 18502 1478 553 4 Not Married 96522 43 4 56152 18483 1457 537 5 Not Married 96697 49 2 56453 18520 1469
- 10. 545 6 Not Married 96727 39 2 56440 18376 1441 542 7 Not Married 94867 60 1 55512 18633 1485 523 8 Not Married 96690 57 2 56097 18334 1453 535 9 Not Married 97469 35 4 54929 18514 1451
- 11. 565 10 Not Married 96886 44 2 55321 18312 1450 523 11 Not Married 95744 52 4 55963 18435 1465 555 12 Not Married 96572 59 2 56515 18648 1480 552 13 Not Married 95366 48 2 57082 18576 1478
- 16. 626 30 Married 97977 44 2 73198 22990 1298 696 STAT200: Assignment #2 - Descriptive Statistics Analysis and Writeup - Instructions Page 1 of 3 STAT200 Introduction to Statistics Assignment #2: Descriptive Statistics Analysis and Writeup Assignment #2: Descriptive Statistics Analysis and Writeup In the first assignment (Assignment #1: Descriptive Statistics Analysis Data Plan), you developed a scenario about annual household expenditures and a plan for analyzing the data using descriptive statistic methods. The purpose of this assignment is to carry out the descriptive statistics analysis plan and write up the results. The expected outcome of this assignment is a two to three page write-up of
- 17. the findings from your analysis as well as a recommendation. Assignment Steps: Step #1: Review Feedback from Your Instructor Before performing any analysis, please make sure to review your instructor’s feedback on Assignment #1: Descriptive Statistics Data Analysis Plan. Based on the feedback, modify variables, tables, and selected statistics, graphs, and tables, if needed. Step #2: Perform Descriptive Statistic Analysis • (Re)Familiarize yourself with the variables. Review Table 1: Variables Selected for the Analysis you generated for the first assignment as well as your instructor’s feedback. In addition, look at the data dictionary contained in the data set for information about the variables. • Select the variables you need for the analysis. as outlined in your first assignment, with any needed
- 18. modifications, based on your instructor’s feedback. • Calculate Measures of Central Tendency and Variability. Use the information from Assignment #1 - Table 2. Numerical Summaries of the Selected Variables. Here again, be sure to see your instructor’s feedback and incorporate into the analysis. • Prepare Graphs and/or Tables. Use the information from Assignment #1 - Table 3. Type of Graphs and/or Tables for Selected Variables. Here again, be sure to see your instructor’s feedback and incorporate into the analysis. STAT200: Assignment #2 - Descriptive Statistics Analysis and Writeup - Instructions Page 2 of 3 Step #3: Write-up findings using the Provided Template For this part of the assignment, write a short 2-3 page write-up of the process you followed and the findings from your analysis. You will describe, in words, the statistical analysis used and present the results in both statistical/text and graphic formats.
- 19. Here are the main sections for this assignment: ✓ Identifying Information. Fill in information on name, class, instructor, and date. ✓ Introduction. For this section, use the same scenario you submitted for the first assignment and modified using your instructor’s feedback, if needed. Include Table 1 (Table 1: Variables Selected for the Analysis) you used in Assignment #1 to show the variables you selected for the analysis. ✓ Data Set Description and Method Used for Analysis. Briefly describe the data set, using information provided in the data set file. Also describe what method(s) (i.e., TI Calculator, free web applets, Excel) you used to analyze the data. ✓ Results. In this section, you will report the results of your descriptive statistics data analysis. For each variable, fill in the following sections: • Variable (#): (Name). Fill in the name of the variable. Note: Income was included for variable 1.
- 20. • Numerical Summary. Fill in Table . Descriptive Analysis for Variable with your computation. Below is the template table; be sure to include the name(s) of the measures used as well as their values. Since there will be no measure of dispersion for the qualitative variable, just enter N/A for not applicable. Note: The information for the required variable, “Income,” has already been partially completed and can be used as a guide for completing information on the remaining variables. Variable n Measure(s) of Central Tendency Measure(s) of Dispersion Variable: • Graph and/or Table. Put the graph or table for the variable in this section. STAT200: Assignment #2 - Descriptive Statistics Analysis and Writeup - Instructions Page 3 of 3
- 21. • Description of Findings. - Briefly describe the descriptive statistics measure(s) that was/were calculated and explain why was it/they the appropriate one(s) to use. - Describe the results of the analysis in everyday language. Please consult your textbook and information contained in our LEO classroom for examples. ✓ Discussion and Conclusion. Organize the discussion to address findings for which you presented results. Briefly discuss each variable in the same sequence as presented in the results. What has the highest expenditure? What variable has the lowest expenditure? If you were to recommend a place to save money, which expenditure would it be and why? Note: The section should be no more than 2 paragraphs. Assignment Submission: Name the file that contains your completed “Assignment #2: Descriptive Statistics Analysis Writeup Template” using the following format: “Assignment2-StudentLastName.” Submit it via the Assignments area in the LEO classroom in the “Assignment #2: Descriptive Statistics
- 22. Analysis Writeup” folder. Grading Rubric for Assignment #2 Introduction 10% Description of data set and method(s) used for analyzing the data 10% Results. For each variable (10% for each variable): ● Numerical Summary: Accurate/appropriate results reported in table. ● Graph and/or Table: Accurate/appropriate graph or table. ● Findings: ○ Description of and explanation of measure(s) used. ○ Explanation of the results of the analysis, including information from both the numerical summary and graph and/or table. 50% Discussion and Conclusion. Described results and provided answers to questions about expenditures. 20% Writes clearly, concisely, and with few errors. Clearly presents material graphically. Easy to understand.
- 23. 10%