A Researcher Wished to Evaluate the Operating Life of a Certain

question 61

Short Answer

A researcher wished to evaluate the operating life of a certain brand of storage battery. A group of 30, brand-new batteries was selected and placed in 30 identical automobiles. The lights in each automobile were then turned on (without running the engines), and the length of time before the batteries were fully discharged (lights went out) was recorded. The scores, in hours, were: 15, 10, 20, 18, 18, 11, 11, 11, 11, 12, 12, 12, 10, 9, 9, 8, 9, 9, 11, 11, 11, 15, 12, 12, 12, 10, 12, 12, 15, 12.
-Calculate the median.

---

Definitions:

Heterosexual Contact

Sexual interaction between individuals of different sexes, typically involving male and female participants.

HIV-Positive

The condition of having a positive test result for the human immunodeficiency virus, the virus that can lead to acquired immunodeficiency syndrome (AIDS).

Oral Intercourse

Sexual activity involving the stimulation of the genitalia of a partner using the mouth, lips, and tongue.

Antiretroviral Therapy

A treatment for HIV/AIDS using medications that inhibit the virus's replication, helping to manage the infection and improve the patient's quality of life.