Waiting times (in minutes) of customers at 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 coefficient of variation for each of the two sets of data, then compare the variation. Bank A (single line): 6.4 6.5 6.7 6.8 7.0 7.3 7.5 7.6 7.6 7.8 Bank B (individual 4.3 5.5 5.8 6.1 6.6 7.6 lines): 7.7 8.6 9.2 9.9 The coefficient of variation for the waiting times at Bank A is (Round to one decimal place as needed.) %. The coefficient of variation for the waiting times at the Bank B is (Round to one decimal place as needed.) Is there a difference in variation between the two data sets? %. O A. The waiting times at Bank A have considerably less variation than the waiting times at Bank B. B. There is no significant difference in the variations. C. The waiting times at Bank B have considerably less variation than the waiting times at Bank A.

Waiting times (in minutes) of customers at 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 coefficient of variation for each of the two sets of data, then compare the variation. Bank A (single line): 6.4 6.5 6.7 6.8 7.0 7.3 7.5 7.6 7.6 7.8 Bank B (individual 4.3 5.5 5.8 6.1 6.6 7.6 lines): 7.7 8.6 9.2 9.9 The coefficient of variation for the waiting times at Bank A is (Round to one decimal place as needed.) %. The coefficient of variation for the waiting times at the Bank B is (Round to one decimal place as needed.) Is there a difference in variation between the two data sets? %. O A. The waiting times at Bank A have considerably less variation than the waiting times at Bank B. B. There is no significant difference in the variations. C. The waiting times at Bank B have considerably less variation than the waiting times at Bank A.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.1: Measures Of Center

Problem 14PPS

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