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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola
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In Exercise, find the mean and median for each of the two

Chapter 3, Problem 24BSC

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QUESTION:

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

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QUESTION:

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

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