STAT200: Assignment #2 - Descriptive Statistics Analysis Writeup - Template Page 3 of 3 University of Maryland University College STAT200 - Assignment #2: Descriptive Statistics Analysis and Writeup Identifying Information Student (Full Name): Class: STAT 200 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. 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: “Marital Status” Martial Status as the Head of Household Qualitative Variable 3: “Family Size” Total number of people in the house to include adults and children Quantitative Variable 4: “Annual Expenditures” Total amount of annual expenditures Quantitative Variable 5: “Age Head of Household” Age of Head of Household Quantitative Data Set Description and Method Used for Analysis: Results: Variable 1: Income Numerical Summary. 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 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) 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 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 informat.

1. STAT200: Assignment #2 - Descriptive Statistics Analysis
Writeup - Template
Page 3 of 3
University of Maryland University College
STAT200 - Assignment #2: Descriptive Statistics Analysis and
Writeup
Identifying Information
Student (Full Name):
Class: STAT 200
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.
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: “Marital Status”
Martial Status as the Head of Household
Qualitative
Variable 3: “Family Size”
Total number of people in the house to include adults and
children

2. Quantitative
Variable 4: “Annual Expenditures”
Total amount of annual expenditures
Quantitative
Variable 5: “Age Head of Household”
Age of Head of Household
Quantitative
Data Set Description and Method Used for Analysis:
Results:
Variable 1: Income
Numerical Summary.
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

3. Variable
n
Measure(s) of Central Tendency
Measure(s) of Dispersion
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)
Description of Findings.
Variable 4: (Fill in name of variable)

4. 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
Variable:
Graph and/or Table.
(Place Graph or Table Here)
Description of Findings.
Discussion and Conclusion.

5. 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
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

6. 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
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

7. 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
546
2
Not Married
96621
54
2
55746
18149
1455
540
3
Not Married
96664
53
3
55558
18502
1478

8. 553
4
Not Married
96522
43
4
56152
18483
1457
537
5
Not Married
96697
49
2
56453
18520
1469
545
6
Not Married
96727
39
2
56440
18376
1441
542
7
Not Married
94867
60
1
55512
18633
1485

9. 523
8
Not Married
96690
57
2
56097
18334
1453
535
9
Not Married
97469
35
4
54929
18514
1451
565
10
Not Married
96886
44
2
55321
18312
1450
523
11
Not Married
95744
52
4
55963
18435
1465

10. 555
12
Not Married
96572
59
2
56515
18648
1480
552
13
Not Married
95366
48
2
57082
18576
1478
538
14
Not Married
97912
49
1
55704
18619
1450
553
15
Not Married
96928
43
3
55932
18701
1479

11. 520
16
Married
114051
42
5
84486
25728
1452
818
17
Married
106627
56
3
82676
22414
1688
709
18
Married
109312
37
6
80801
25392
1514
743
19
Married
103144
29
5
75393
26322
1386

12. 626
20
Married
111195
30
5
80865
25018
1481
796
21
Married
112559
39
3
80934
25531
1504
794
22
Married
97835
30
5
77765
27949
1297
641
23
Married
100693
42
2
73294
26102
1354

13. 597
24
Married
95385
50
4
74110
22847
1302
684
25
Married
100350
31
5
73771
26853
1405
585
26
Married
95922
55
3
72228
22996
1326
674
27
Married
96207
27
3
74620
28491
1310

14. 588
28
Married
97663
51
3
72971
23150
1320
689
29
Married
100565
18
3
69203
27950
1358
626
30
Married
97977
44
2
73198
22990
1298
696
STAT200: Assignment #2 - Descriptive Statistics Analysis and
Writeup - Instructions
Page 1 of 3

15. 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
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

16. • (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.
assignment, with any needed
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

17. 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.
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.

18. ✓ 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.
• 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.

19. 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
• 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

20. 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
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:

21. ○ 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.
10%
STAT200: Assignment #1 - Descriptive Statistics Analysis Plan
- Template
Page 1 of 3
University of Maryland University College
STAT200 - Assignment #1: Descriptive Statistics Data Analysis
Plan
Identifying Information
Student (Full Name):
Class:STAT 200
Instructor:
Date:

22. Scenario: I am the head of household as a single parent and only
source of income. I have obtained a high school diploma for
education. I have one child that I am the sole provider for.
Use Table 1 to report the variables selected for this assignment.
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.
Table 1. Variables Selected for the Analysis
Variable Name in the Data Set
Description
(See the data dictionary for describing the variables.)
Type of Variable
(Qualitative or Quantitative)
Variable 1: “Income”
Annual household income in USD.
Quantitative
Variable 2: “Marital Status”
Martial Status as the Head of Household
Qualitative
Variable 3: “Family Size”
Total number of people in the house to include adults and
children
Quantitative
Variable 4: “Annual Expenditures”
Total amount of annual expenditures
Quantitative
Variable 5: “Age Head of Household”
Age of Head of Household
Quantitative
Reason(s) for Selecting the Variables and Expected
Outcome(s):
Variable 1: “Income” – This will show the annual income in the

23. household in USD
Variable 2: “Martial Status”– This variable will be relevant as it
is the only income
Variable 3: “Family Size” – This shows the size of the family in
the household
Variable 4: “AnnualExpenditures” – This shows the
expenditures throughout the year
Variable 5: “Age Head of Household”– This variable shows the
age of the head of household
Data Set Description:
Proposed Data Analysis:
Measures of Central Tendency and Dispersion
Complete Table 2. Numerical Summaries of the Selected
Variables and 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.
Table 2. Numerical Summaries of the Selected Variables
Variable Name
Measures of Central Tendency and Dispersion
Rationale for Why Appropriate
Variable 1:
“Income”
Number of ObservationsMedianSample Standard Deviation
I am using median for two reasons:If there are any outliers or
the data is not normally distributed, the median is the best
measure of central tendency.The variable is quantitative.
I am using sample standard deviation for three reasons:The data
is a sample from a larger data set.It is the most commonly used
measure of dispersion.The variable is quantitative.
Variable 2:

24. Marital Status Mode Variance
I am using mode as a measurement to be used at all levels of
data.
I am using variance to determine the differences in the
households.
Variable 3:
Family Size Range Sample Standard DeviationMean
I am using range to find out how many other households have
the same size family.
Sample Standard Deviation will be used to gather data on a
larger scale
Variable 4:
Annual Expenditures Median Range Sample Standard Deviation
I am using the median to find out what the average expenses are
in a single income household.
The range will be based on a larger scale
Variable 5:
Age Head of Household Mean Range
The mean will be determined on average age of guardian in the
household.
Graphs and/or Tables
Complete Table 3. Type of Graphs and/or Table for Selected
Variables and briefly explain why you choose those graphs
and/or tables. 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.
Table 3. Type of Graphs and/or Tables for Selected Variables
Variable Name
Graph and/or Table

25. Rationale for why Appropriate?
Variable 1:
“Income”
Graph: I will use the histogram to show the normal distribution
of data.
Histogram is one of the best plot to show the normal
distribution of quantitative level data.
Variable 2:
Marital Status
Graph: Pie Chart will be used for this variable
A pie chart to show the percentage of each marital status.
Variable 3:
Family Size
Graph: A Bar Chart
A bar chart will show differences in family sizes
Variable 4:
Annual Expenditures
Graph: A Bar Chart
A bar chart will show the average spent on a single income
Variable 5:
Age Head of Household
Table: Grouped Frequency Table
Grouping these together will show the average single parent
households