Waiting times (in minutes) of customers in a bank where all customers enter a single waiting...
Waiting times (in minutes) of customers in a bank where all customers enter a single waiting line and a bank where customers wait in individual lines at three different teller windows are listed below. Find the mean and median for each of the two samples, then compare the two sets of results.
|
Single Line |
6.56.5 |
6.66.6 |
6.76.7 |
6.86.8 |
7.17.1 |
7.27.2 |
7.47.4 |
7.87.8 |
7.87.8 |
7.87.8 |
|
|---|---|---|---|---|---|---|---|---|---|---|---|
|
Individual Lines |
4.44.4 |
5.45.4 |
5.95.9 |
6.26.2 |
6.56.5 |
7.87.8 |
7.87.8 |
8.58.5 |
9.39.3 |
9.99.9 |
The mean waiting time for customers in a single line is_minutes.
The median waiting time for customers in a single line is_minutes.
The mean waiting time for customers in individual lines is _minutes.
The median waiting time for customers in individual lines is_minutes.
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?
A.
The times for customers in a single line are much more varied than the times for customers in individual lines.
B.
The times for customers in individual lines are much more varied than the times for customers in a single line.
C.
There is no difference between the two data sets.
Homework Answers
The mean waiting time for customers in a single line is 7.17
The median waiting time for customers in a single line is 7.15
The mean waiting time for customers in individual lines is 7.17 minutes.
The median waiting time for customers in individual lines is 7.15 minutes.
option B is correct:
The times for customers in individual lines are much more varied than the times for customers in a single line.
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customers enter a single waiting line that feeds three teller
windows. Test the claim that the standard deviation of waiting
times is less than. 1.5 minutes, which is the standard deviation of
waiting times at the same bank when separate waiting lines are used
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