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InstructionsInfo for this question is in the files

STAT200 Introduction to Statistics Assignment #1: Descriptive Statistics Data Analysis Plan

Assignment #1: Prepare Descriptive Statistics Data Analysis Plan

Before conducting any statistical analyses, researchers develop a plan for how they will analyze their data to answer their research questions. The purpose of this assignment is to provide an experience developing a descriptive statistics analysis plan. Note: This first assignment is a plan only; no statistics will be calculated or graphs created. The second assignment will involve carrying out the plan, after receiving feedback from your instructor.Assignment Steps: Step #1: Review the STAT200 data set file. (Note: This data set will be used for all three of this terms written assignments). The data is a subsample from the US Department of Labors Consumer Expenditure Surveys (CE) and provides information about the composition of households and their annual expenditures (https://www.bls.gov/cex/). Detailed information on the sample and variables is included with the data set file; please carefully review this information to familiarize yourself with the data (Note: This information will be used in Assignment #2 to describe the dataset).

Step #2: Develop descriptive statistics data analysis plan.

? Task 1: Develop scenario. Imagine that you are head of a household and have to determine a household budget plan based on the data available from the dataset. For instance, you are a 35 year old single parent with a high school diploma and one child. ? Task 2: Select variables for analysis that match the scenario developed in Task 1. The data set provides information on household consumption; there are socioeconomic variables and expenditures variables. The socioeconomic variable names start with SE- and the expenditure variable names start with a USD; all expenditures are in US dollars. All students must use income as one variable. Select two additional socioeconomic variables (one qualitative and one quantitative) and two expenditures for your analysis that match the scenario you developed for Task 1. For instance, using the example scenario of a 35 year old single parent with a high

STAT200: Written Assignment #1 – Descriptive Statistics Data Analysis Plan – Instructions Page 2 of 4

school diploma and one child, you could select income, education, and number of children as socioeconomic variables and then pick two household expenditure items to show the distribution of costs and compare that with your income. When selecting variables, think about the following three questions: o Why am I choosing these variables? o What interests me about these variables? o What do I think will be the outcome?? Task 3: Determine appropriate measures of central tendency and dispersion for the selected variables. For each quantitative variable, select at least one measure of central tendency and at least one measure of dispersion (Please see below table for list of measures). For the qualitative variable, select one measure of central tendency. When determining the measures of central tendency and dispersion, think about what is appropriate given the level of measurement and type of variable. Recommend referring to the text and information posted in our LEO classroom to help with this task (Note: you will use this information to provide a rationale for your choice of measures).

Measures of Central Tendency Measures of Dispersion ? Mean ? Mode ? Median ? Range ? Sample Standard Deviation ? Variance? Task 4: Determine appropriate graph and/or table for each of the selected variables. Select one graph or table for each variable (Please see below table for list of graphs and tables). When determining the graphs and tables, think about what is appropriate given the level of measurement and type of variable. Recommend referring to the text and information posted in our LEO classroom to help with this task (Note: you will use this information to provide a rationale for your choice of graphs and/or tables).

Types of Graphs Types of Tables ? Pie Chart ? Bar Chart ? Histogram ? Box Plots (also known as Box-and-Whiskers Plot) ? Frequency Table ? Relative Frequency Table ? Grouped Frequency TableSTAT200: Written Assignment #1 – Descriptive Statistics Data Analysis Plan – Instructions Page 3 of 4

Step #3: Complete the Assignment #1: Descriptive Statistics Data Analysis Plan Template. Remember, you will not be conducting any statistical analysis, drawing any graphs, or compiling any tables for the first assignment. Rather, you need to wait for feedback from your instructor on this assignment and use that feedback to complete Assignment #2.Here are the main sections for this assignment (i.e., completing the plan template): ? Identifying Information. Fill in information on name, class, instructor, and date. ? Scenario. In this section, briefly (2-3 sentences) describe the scenario you developed in Step #2, Task 1. ? Complete Table 1: Variables Selected for the Analysis. Enter information the variables selected for analysis in Step #2, Task 2. For each selected variable be sure to include its: name as listed in the data set, description, and variable type. ? Reason(s) for Selecting the Variables and Expected Outcome(s): In this section, for each selected variable, please answer the following questions: ? Why did I choose this variable? ? What interests me about this variable? ? What do I think will be the outcome? ? Complete Table 2. Numerical Summaries of the Selected Variables. Enter information on selected measures of central tendency and dispersion for each selected variable. Be sure to briefly explain why you choose those measurements. Note: The information for the required variable, Income, has already been completed and can be used as a guide for completing information on the remaining variables. ? Complete Table 3. Type of Graphs and/or Tables for Selected Variables. Enter information on selected graph and/or table for each selected variable. Be sure to briefly explain why you choose those measurements. Note: The information for the required variable, Income, has already been completed and can be used as a guide for completing information on the remaining variables.

Assignment Submission: Name the file that contains your completed Assignment #1: Descriptive Statistics Data Analysis Plan Template using the following format: Assignment1-StudentLastName.

STAT200: Written Assignment #1 – Descriptive Statistics Data Analysis Plan – Instructions Page 4 of 4

Then, submit the file via the Assignments area in the LEO classroom in the Assignment #1: Descriptive Statistics Data Analysis Plan folder and wait for your instructors feedback.Grading Rubric for Written Assignment #1 Scenario and Selection of Related Variables ? Clear description of scenario ? Selected variables and reasons are appropriate for the scenario.

20%

Selection of Measures of Central Tendency and Dispersion

For each variable:

? Appropriate measures selected. ? Rationale is provided and appropriate.

30%

Selection of Graphs and/or Tables

For each variable:

? Appropriate measures selected. ? Rationale is provided and appropriate.

30%

Writing Quality: Completes all sections of template. Writes clearly, concisely, and with few errors.

20%

RUBRIC

Excellent Quality95-100%

Introduction45-41 points

The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned.

Literature Support91-84 points

The background and significance of the problem and a clear statement of the research purpose is provided. The search history is mentioned.

Methodology58-53 points

Content is well-organized with headings for each slide and bulleted lists to group related material as needed. Use of font, color, graphics, effects, etc. to enhance readability and presentation content is excellent. Length requirements of 10 slides/pages or less is met.

Average Score50-85%

40-38 points

More depth/detail for the background and significance is needed, or the research detail is not clear. No search history information is provided.

83-76 points

Review of relevant theoretical literature is evident, but there is little integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are included. Summary of information presented is included. Conclusion may not contain a biblical integration.

52-49 points

Content is somewhat organized, but no structure is apparent. The use of font, color, graphics, effects, etc. is occasionally detracting to the presentation content. Length requirements may not be met.

Poor Quality0-45%

37-1 points

The background and/or significance are missing. No search history information is provided.

75-1 points

Review of relevant theoretical literature is evident, but there is no integration of studies into concepts related to problem. Review is partially focused and organized. Supporting and opposing research are not included in the summary of information presented. Conclusion does not contain a biblical integration.

48-1 points

There is no clear or logical organizational structure. No logical sequence is apparent. The use of font, color, graphics, effects etc. is often detracting to the presentation content. Length requirements may not be met

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