To examine the relationship between texting and driving skill, a researcher uses orange cones to set up a driving circuit in the high school parking lot. A group of students is then tested on the circuit, once while receiving and sending text messages and once without texting. For each student, the researcher records the number of orange cones hit while driving each circuit. What type of test would you use to test the hypothesis texting affects driving performance? Would you use a one-tailed or two-tailed test? What would be an appropriate measure of effect size to report?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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  1. To examine the relationship between texting and driving skill, a researcher uses orange cones to set up a driving circuit in the high school parking lot. A group of students is then tested on the circuit, once while receiving and sending text messages and once without texting. For each student, the researcher records the number of orange cones hit while driving each circuit.
    1. What type of test would you use to test the hypothesis texting affects driving performance?
    2. Would you use a one-tailed or two-tailed test?
    3. What would be an appropriate measure of effect size to report?
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