In previous years, we have asked students to complete an anonymized survey that was then used to
Question:
In previous years, we have asked students to complete an anonymized survey that was then used to generate data. Indicate the type of correlation we should use to examine the relationships between the two variables listed in the table (each scale of measurement is provided below). Give the verbal name for the correlation coefficient AND its symbol.
Variables | Correlation Coefficient | Symbol |
Age & Mode of Transportation | ||
Height & Computer Knowledge | ||
Expected Grade for Stats Class & Age | ||
Expected Grade & Anxiety | ||
Height & Mode of Transportation | ||
Preferred Social Media Site & Mode of Transportation |
The scale of Measurement for Each Variable
• Age is a ratio variable
• Height is a ratio variable
• Mode of Transportation is a nominal variable
• Computer Knowledge is an interval variable
• Expected Grade for Stats Class is an ordinal variable – most are 5% intervals except for the first
and last category “< 50%” and “95%-100%”
• Anxiety is an ordinal variable
• Preferred Social Media Site is a nominal variable.
Data Analysis and Decision Making
ISBN: 978-0538476126
4th edition
Authors: Christian Albright, Wayne Winston, Christopher Zappe