18Anthropologists investigating interbreeding between two ancient cultures want to test the difference between the average skull breadth for the two different groups. Let 1be the population mean skull breadth from culture 1 and 2be the population mean skull breadth from culture 2. The test is carried out using the following pair of hypotheses: H0: 1- 2= 0 vs. Ha: 1- 2 0.

Using samples of skulls from the two groups you obtain aP-value of 0.062 for the test.

Using (alpha) = 0.05, what are the decision and conclusion from the test?

Select one:

a.

Do not reject H0; conclude that there is insufficient evidence at = 0.05 that the mean skull breadths of the two cultures are different.

b.

Reject H0; conclude that there is sufficient evidence at = 0.05 that the mean skull breadths of the two cultures are different.

c.

Reject Ha; conclude that there is sufficient evidence at = 0.05 that the mean skull breadths of the two cultures are the same.

d.

Do not reject Ha; conclude that there is insufficient evidence at = 0.05 that the mean skull breadths of the two cultures are the same.