A researcher conducted a survey to determine if older people have different feelings about abortion than younger people.He used an alpha level of 0.05 (Z critical = $\pm$1.96)to test for significance and found that his computed test statistic was 2.76.Which of the following conclusions is justified?
A)feelings about abortion do not vary by age
B)older and younger people have significantly different feelings about abortion
C)a one-tailed test should have been used
D)a Type II error has occurred

Question

Quizplus · Accepted Answer

Given the computed test statistic of 2.76 and using an alpha level of 0.05, we can reject the null hypothesis and conclude that there is a significant difference in feelings about abortion between older and younger people. Option A is incorrect, as we have found a significant difference. Option C is also incorrect, as the choice of a one-tailed or two-tailed test should have been made before conducting the test. Option D is not a justifiable conclusion without further information.

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