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.He may conclude that
A)the difference occurred by random chance.
B)the difference did not occur by random chance.
C)the samples are not independent.
D)the alpha level was too low.

Question

Quizplus · Accepted Answer

The computed test statistic (2.76) is greater than the critical value (1.96) at the alpha level of 0.05, which means that the difference between the feelings about abortion among older and younger people is statistically significant and did not occur by random chance. Therefore, the correct choice is B. The other choices (A, C, and D) are not applicable.

A Researcher Conducted a Survey to Determine If Older People ±\pm±

A Researcher Conducted a Survey to Determine If Older People $\pm$