Many Elementary School Students in a School District Currently Have

question 5

Multiple Choice

Many elementary school students in a school district currently have ear infections. A random sample of children in two different schools found that 13 of 46 at one school and 15 of 30 at the other had this
Infection. At the .05 level of significance, is there sufficient evidence to conclude that a difference exists
Between the proportion of students who have ear infections at one school and the other?

• A)Yes, there is sufficient information to reject the hypothesis that the proportions of students at the two
• schools who have ear infections are the same because the test value -16.96 is outside the acceptance
• Region (-1.96,1.96).
• B)No, there is not sufficient information to reject the hypothesis that the proportions of students at the two
• schools who have ear infections are the same because the test value -1.92 is inside the acceptance region
• (-1)96,1.96).
• C)Yes, there is sufficient information to reject the hypothesis that the proportions of students at the two
• schools who have ear infections are the same because the test value -2.52 is outside the acceptance
• Region (-1.96,1.96).
• D)Yes, there is sufficient information to reject the hypothesis that the proportions of students at the two
• schools who have ear infections are the same because the test value -9.44 is outside the acceptance
• Region (-1.96,1.96).

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