In a Test of a New Surgical Procedure,the Five Most

question 9

Multiple Choice

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

• A)Use the paired t-test.
• B)Use the independent samples t-test.
• C)Use the independent samples z test.
• D)Cannot be sure which test to use without knowing α.

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Definitions:

Masturbate

The self-stimulation of one's genitals for sexual pleasure.

Testosterone

A steroid hormone that plays a key role in the development of male reproductive tissues, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.

Sexual Dysfunction

Difficulties related to any phase of the sexual response cycle that prevent the individual or couple from experiencing satisfaction.

Stop-start Technique

A sexual therapy technique used to delay ejaculation by stopping sexual stimulation before climax.