Answer it correctly please. I ll rate with multiple votes. TYPED answer only. Explain why other options are incorrect as well.

In a test of a new surgical procedure, the five most respected surgeons in FlatBroke Township were invited to Carver Hospital. Each surgeon was assigned two patients of the same age, gender, and overall health. One patient was operated upon in the old way, and the other in the new way. Both procedures are considered equally safe. The surgery times are shown below:

Which test should we use to test for zero difference in mean times?

Select one:

a.Paired t-test

b.Independent samples t-test

c.Independent samples z test

d.Cannot be sure without knowing