Xr13-54 In a preliminary study to determine whether the installation of a camera designed to catch cars

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Xr13-54 In a preliminary study to determine whether the installation of a camera designed to catch cars that go through red lights affects the number of violators, the number of red-light runners was recorded for each day of the week before and after the camera was installed. These data are listed here. Can we infer that the camera reduces the number of red-light runners?

Day Sunday Monday Tuesday Wednesday Before 7 21 27 18 After 8 18 24 19 Day Thursday Friday Saturday Before 20 24 16 After 16 19 16

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Statistics For Management And Economics

ISBN: 9781133420774

9th Edition

Authors: Gerald Keller, Kenneth C Louden

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