Find the range, mean and median for each of the two samples below, and then comp
ID: 3433548 • Letter: F
Question
Find the range, mean and median for each of the two samples below, and then compare the two sets of results. [15]
Customer Waiting Times:
Waiting times (in minutes) of customers at the Jefferson Valley Bank (where all customers enter a single waiting line) and the Bank of Providence (where customers wait in individual lines at three different teller windows) are listed below. Determine whether there is a difference between the two data sets that is not apparent from a comparison of the measures of center. If so, what is it?
Jefferson Valley (single line):
6.5
6.6
6.7
6.8
7.1
7.3
7.4
7.7
7.7
7.7
Providence (individual lines):
4.2
5.4
5.8
6.2
6.7
7.7
7.7
8.5
9.3
10.0
Jefferson Valley (single line):
6.5
6.6
6.7
6.8
7.1
7.3
7.4
7.7
7.7
7.7
Providence (individual lines):
4.2
5.4
5.8
6.2
6.7
7.7
7.7
8.5
9.3
10.0
Explanation / Answer
Jefferson Valley
R= Highest value-Lowest value=5.8
Mean=7.15
Median=7.2
cv=25.47%
Providence
R=Highest value-Lowest value=1.2
mean=7.15
Median=7.2
cv=6.66%
The change wwe see in the two datasets is that the variations are different.
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