The article "More Communities Banning 'Television on a Stick'" describes an ongoing controversy over the
distraction caused by digital billboards along highways. One study mentioned in the newspaper article is
described in "Effects of Advertising Billboards During Simulated Driving." In this study, 48 people made a
9 km drive in a driving simulator. Drivers were instructed to change lanes according to roadside lane change
signs. Some of the lane changes occurred near digital billboards. What was displayed on the digital billboard
changed once during the time that the billboard was visible by the driver to simulate the changing digital
billboards that appear along highways. Data from this study supported the theory that the time required to
respond to road signs was greater when digital billboards were present.
Is the inference made one that involves estimation or one that involves hypothesis testing?
The inference made involves estimation.
The inference made involves hypothesis testing.
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The inference made involves hypothesis testing.
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