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A study published in the American Journal of Public Health was conducted to determine whether the use of seat belts in motor vehicles depends on ethnic status in San Diego County. A sample of 792 children treated for injuries sustained from motor vehicle accidents was obtained, and each child was classified according to (1) ethnic status (Hispanic or non-Hispanic) and (2) seat belt usage (worn or not worn) during the accident. The number of children in each category is given in the table below. Hispanic Non-Hispanic Seat belts worn 31 148 Seat belts not worn 283 330 Referring to the table, which test would be used to properly analyze the data in this experiment? a. chi-square test for independence in a two-way contingency table. b. chi-square test for equal proportions in a one-way table. c. ANOVA F test for interaction in a 2 x 2 factorial design. d. chi-square test for a 2 x 2 factorial design.

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Operation Management, Management Studies

Category:- Operation Management
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