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Introduction to Planning a Study Practice Test
•15 QuestionsQuestion
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Q1
A state transportation agency asks: “Do digital roadside signs that display a driver’s current speed reduce average driving speed?” The population is all drivers on a particular highway segment. The proposed plan is to measure speeds for one week, install the digital signs, then measure speeds for the next week and compare the two weeks’ average speeds. Which aspect is most important to address before collecting data?
A state transportation agency asks: “Do digital roadside signs that display a driver’s current speed reduce average driving speed?” The population is all drivers on a particular highway segment. The proposed plan is to measure speeds for one week, install the digital signs, then measure speeds for the next week and compare the two weeks’ average speeds. Which aspect is most important to address before collecting data?