9
AssignmentMultiple Choice

Skills Lesson: Statistical Analysis of Data

Question 9 • AP Biology - SC5182 A

Do the data support or refute the null hypothesis?

Answer
A
5.31 < 7.82, so the null hypothesis is supported.
B
5.31 < 7.82, so the null hypothesis is refuted.
C
With 5% certainty, the null hypothesis is supported.
D
With 7% certainty, the null hypothesis is supported.

Explanation

The test statistic, 5.31, is less than the critical value, 7.82. It therefore does not fall in the rejection region, so the data do not provide enough evidence to refute the null hypothesis. This matches choice A, though failing to refute a null hypothesis does not prove it is true.

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