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Get Full Access to Elementary Statistics - 12 Edition - Chapter 3.3 - Problem 24bsc
Get Full Access to Elementary Statistics - 12 Edition - Chapter 3.3 - Problem 24bsc

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# Solution: In Exercises, find the coefficient of variation

ISBN: 9780321836960 18

## Solution for problem 24BSC Chapter 3.3

Elementary Statistics | 12th Edition

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Problem 24BSC

Problem 24BSC

In Exercises, find the coefficient of variation for each of the two samples; then compare the variation. (The same data were used in Section 3-2.)

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.

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

 SL No. Jefferson Valley(single line)       x Providence(individual lines)    y (x - (y - 1 6.5 4.2 0.4225 8.7025 2 6.6 5.4 0.3025 3.0625 3 6.7 5.8 0.2025 1.8225 4 6.8 6.2 0.1225 0.9025 5 7.1 6.7 0.0025 0.2025 6 7.3 7.7 0.0225 0.3025 7 7.4 7.7 0.0625 0.3025 8 7.7 8.5 0.3025 1.8225 9 7.7 9.3 0.3025 4.6225 10 7.7 10 0.3025 8.1225 Sum 71.5 71.5 2.045 29.865 Average 7.15 7.15

Mean of  Jefferson Valley (single line)

=

=  7.15

Standard deviation

=

= 0.4766

Step 2 of 3

Step 3 of 3

##### ISBN: 9780321836960

The answer to “In Exercises, find the coefficient of variation for each of the two samples; then compare the variation. (The same data were used in Section 3-2.)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.Jefferson Valley (single line): 6.5 6.6 6.7 6.8 7.1 7.3 7.4 7.7 7.7 7.7Providence (individual lines): 4.2 5.4 5.8 6.2 6.7 7. 7 7.7 8.5 9.3 10.0” is broken down into a number of easy to follow steps, and 91 words. This textbook survival guide was created for the textbook: Elementary Statistics, edition: 12. The full step-by-step solution to problem: 24BSC from chapter: 3.3 was answered by , our top Statistics solution expert on 03/15/17, 10:30PM. This full solution covers the following key subjects: customers, Waiting, bank, individual, jefferson. This expansive textbook survival guide covers 121 chapters, and 3629 solutions. Since the solution to 24BSC from 3.3 chapter was answered, more than 589 students have viewed the full step-by-step answer. Elementary Statistics was written by and is associated to the ISBN: 9780321836960.

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