AET121
Spring 2013
Quiz #3
Name: Davon WIlson
True/False
_t_1. A scatter plot requires two quantitative variables (i.e., not categorical data).
_f_2. . The number of bins is in this histogram (caffeine content in mg/oz for 65 soft
drinks) is consistent wi

AET121
Spring 2013
Quiz #1
Name:Davon WIlson
True/False
_t_1. Categorical data have values that are described by words rather than numbers.
_f_2. The number of checks processed at a bank in a day is an example of categorical
data.
Multiple Choices
1. An i

AET121
Spring 2013
Quiz #2
Name: Davon WIlson
True/False
_t_1. The line chart is appropriate for categorical (qualitative) data.
_f_2. Dot plots are similar to histograms with many bins (classes).
Multiple Choices
1. Which of the following is true?
A. Lin

AET121
Spring 2013
Quiz #4
Name: Davon WIlson
True/False
_t_1. A scatter plot is used to visualize the association (or lack of association) between
two quantitative variables.
_f_2. Pearson's correlation coefficient (r) requires that both variables be int

Study Guide Test 2
For Part 1
Visual Displays
Begin the analysis of bivariate data (i.e., two variables) with a scatter plot.
A scatter plot
- displays each observed data pair (xi, yi) as a dot on an X/Y grid
- indicates visually the strength of the rel

Study Guide Test 1
For Part 1
Methods of organizing, exploring and summarizing data include:
Visual (charts and graphs)
provides insight into characteristics of a data set without using mathematics.
Numerical (statistics or tables)
provides insight into c

Lecture 4
Nominal Measurement
Nominal data merely identify a category.
Nominal data are qualitative, attribute, categorical or classification data (e.g., Apple,
Compaq, Dell, HP).
Nominal data are usually coded numerically, codes are arbitrary (e.g., 1 =

Lecture 3
Subjects, Variables, Data Sets
We will refer to Data as plural and data set as a particular collection of data as a whole.
Observation each data value.
Subject (or individual) an item for study (e.g., an employee in your company).
Variable a cha

Lecture 2
The Three Ps
Pace yourself when presenting. Take your time, introduce yourself, your
data and your project. Make the first minute count.
Plan what your are going to present. Organize your ideas with an outline.
Keep it simple!
Practice before pr

Lecture 1
Rules for Power Writing
Outline the report before you begin.
Complete the report in sections.
Ask trusted peers to review the report and make any necessary revisions.
Be prepared to make multiple revisions.
Writing Style
Answer research question