Author: Margo Coleman-Seiffert
Company: UMUC

University of Maryland University College
STAT200 - Assignment #1: Descriptive Statistics Data Analysis Plan

Identifying Information
Student (Full Name):
Class:
Instructor:
Date:

Scenario: Please write a few lines describing your scenario and the four variables (in addition to income) you have selected.

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: | |
Variable 3: | |
Variable 4: | |
Variable 5: | |

 Reason(s) for Selecting the Variables and Expected Outcome(s):
1.	Variable 1: “Income” -
2.	Variable 2: “  “ -
3.	Variable 3: “  “  -
4.	Variable 4: “  “  -
5.	Variable 5: “  “  -

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 Observations
●	Median
●	Sample Standard Deviation

I am using median for two reasons:
1.	If there are any outliers or the data is not normally distributed, the median is the best measure of central tendency.
2.	The variable is quantitative.

I am using sample standard deviation for three reasons:
1.	The data is a sample from a larger data set.
2.	It is the most commonly used measure of dispersion.
3.	The variable is quantitative.

Variable 2: | |
Variable 3: | |
Variable 4: | |
Variable 5: | |

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 | 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: | |
Variable 3: | |
Variable 4: | |
Variable 5: | |

STAT200: Assignment #1 - Descriptive Statistics Analysis Plan - Template
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