All airline passengers must pass through security screenings, but some are subjected to additional searches as well. Some travelers who carry laptops wonder if that makes them more likely to be searched. Data for 240 passengers aboard a cross-country flight are summarized in the table shown. Does it appear that being subject to an additional search is independent of carrying a laptop computer? Explain. Searched? Yes 60 No Laptop No laptop Total 84 144 40 56 96 100 140 240

FINANCIAL ACCOUNTING
10th Edition
ISBN:9781259964947
Author:Libby
Publisher:Libby
Chapter1: Financial Statements And Business Decisions
Section: Chapter Questions
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All airline passengers must pass through security screenings, but some are subjected to additional
searches as well. Some travelers who carry laptops wonder if that makes them more likely to be
searched. Data for 240 passengers aboard a cross-country flight are summarized in the table shown.
Does it appear that being subject to an additional search is independent of carrying a laptop computer?
Explain.
Searched?
Yes
No
Laptop
No laptop
60
84
144
40
56
96
Total
100
140
240
Transcribed Image Text:All airline passengers must pass through security screenings, but some are subjected to additional searches as well. Some travelers who carry laptops wonder if that makes them more likely to be searched. Data for 240 passengers aboard a cross-country flight are summarized in the table shown. Does it appear that being subject to an additional search is independent of carrying a laptop computer? Explain. Searched? Yes No Laptop No laptop 60 84 144 40 56 96 Total 100 140 240
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