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In Exercise, find the mean and median for each of the two

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 24BSC Chapter 3.2

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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Problem 24BSC

Problem 24BSC

In Exercise, find the mean and median for each of the two samples; then compare the two sets of results.

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

Step-by-Step Solution:
Step 1 of 3

Solution 24BSC

  1.  the mean waiting time of customers at Jefferson Valley Bank is 7.15 minutes.

         the mean waiting time of customers at Providence Bank is 7.15 minutes.

  1. the median waiting time of customers at Jefferson Valley Bank is 7.2 minutes.

        the median waiting time of customers at Providence Bank is 7.2 minutes.

In both the banks mean times are same and median times are also same. Even though the Providence Bank has three teller windows and Jefferson Valley Bank has a single teller, but the mean waiting time is same for both, that means service rate in Jefferson Valley Bank is more than that of Providence.

Step 2 of 3

Chapter 3.2, Problem 24BSC is Solved
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Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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In Exercise, find the mean and median for each of the two