Data: Revenue Growth of the Top
25 U.S. Market Research Firms
from 2012 to 2013.
[Source: The American Marketing
Associations 2014 AMA Gold Top 50 Report]
Construct a box plot and interpret.
Any correlation exists
between the stock price of
Delta airline and Southwest
airline? An analyst sampled
six days of activity of the
stock market. Compute and
interpret the value.
Delta and Southwest Stock Prices
What are Data?
Facts and figures from which conclusions can be drawn.
A data set
A collection of data for a particular study.
A data set provides information about some group of individual
elements, which may be people, objects, events, or other
Measures of Variation
The distribution of repair times (in days) for randomly selected 20
personal computers at the ASC (left) and at the NSC (right).
The measures of central tendency do not indicate any
difference between the ASC and the NSC.
For a population which has mean
1. One-standard-deviation interval
2. Two-standard-deviation interval
3. Three-standard-deviation interval
We call these intervals tolerance intervals.
If we work with sample dat
Measures of Relative Standing
A measure of relative standing describes where one
particular measurement stands in relation to the other
measurements in data.
Data: profit margins for five competing companies in a
Essentials of Personal Finance
Week Four Quiz
Thomas G. Keeling
University of Phoenix
[email protected][email protected]
Please answer the following multiple choice questions. You can u