TABLE 11-1. A study published in the American Journal ofPublic Health was conduc

Question

TABLE 11-1. A study published in the American Journal ofPublic Health was conducted to determine whether the use of seatbelts in motor vehicles depends on ethnic status in San DiegoCounty. A sample of 792 children treated for injuries sustainedfrom motor vehicle accidents was obtained, and each child wasclassified according to (1) ethnic status (Hispanic ornon-Hispanic) and (2) seat belt usage (worn or not worn) during theaccident.
Referring to Table 11-1, which test would be used to properlyanalyze the data in this experiment? a. chi-square test for independence b. chi-square test for differences between two proportions(independent samples) c. chi-square test for differences between two proportions(related samples) d. chi-square test for differences among more than twoproportions

Explanation / Answer

a. chi-square test for independence

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