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arpylzr75 arpylzr75
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A year ago
State highway safety experts claim that the recent increase in highway fatalities involving tractor trailers is a result of truckers receiving insufficient rest. They randomly sample 200 truckers who are making interstate deliveries and record the total amount of nondriving time they have had over the past 72 hours. This study isbestdescribed as a(n) _________________ study.


observational



longitudinal



experimental



inferential

Textbook 
Introductory Statistics: A Problem-Solving Approach

Introductory Statistics: A Problem-Solving Approach


Edition: 3rd
Author:
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iffn23iffn23
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A year ago
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