Week 2 Assignment - Chapters 2 and 3 /NO PLAGARISM PROFESSOR USES TURNITIN
Aishag01
Week2Assignment-Chapters2and3.docx1. Dr. Smith has concluded the initial portion of data collection on her study into rural crime in America. She has placed the task of identifying the various types of data for a random selection of a few of her variables to her new research assistant. Help Dr. Smith’s new assistant by identifying the level of measurement of each of the variables listed in the table below.
|
|
Income |
# Homicides |
Sex |
Age |
Temperature °F |
Suspect |
|
|
$20,215 |
17 |
F |
21 |
56 |
Wendy |
|
|
$150,987 |
22 |
M |
31 |
89 |
Daniel |
|
|
$78,002 |
49 |
M |
37 |
102 |
Albus |
|
|
$67,897 |
82 |
M |
29 |
98 |
Sydney |
|
|
$45,612 |
12 |
F |
54 |
45 |
Lily |
|
|
$35,815 |
3 |
F |
42 |
36 |
Joanne |
|
|
$52,270 |
8 |
F |
35 |
72 |
Cynthia |
|
|
$80,903 |
12 |
M |
23 |
67 |
Ronald |
2. Take the following data set containing a continuous variable and generate categorical data by creating categories into which each of the numbers listed below could fall.
|
Income |
|
$20,215 |
|
$150,987 |
|
$78,002 |
|
$67,897 |
|
$45,612 |
|
$35,815 |
|
$52,270 |
|
$80,903 |
3. Explain why an omitted variable and the omitted variable bias are such concerns in statistics and research. Why would they prove problematic for a researcher?
4. Why is proper identification of the level of measurement for variables in a data set important?
Chapter 3
1. Explain when you would use pie charts, bar graphs, histograms, and line charts, and advantages of each. Then provide an example of data you would use for each.
2. Explain the process through which a researcher would take a continuous variable and generate categorical data from it. Explore the process of interval creation, width determination, and how this process would impact the graphical presentation of the data by the researcher.
