A Researcher Wished to Evaluate the Operating Life of a Certain

question 51

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.
-For the following set of scores, calculate the standard deviation; 5,8,10,10,12,12,12,14,14,16,19.

---

Definitions:

Mindfulness

A mental practice focusing on the present moment in a nonjudgmental manner, often used as a technique to manage stress and improve mental health.

Heightened State

An intensified condition of emotion, awareness, or physical readiness, often associated with increased sensitivity or alertness.

Providing Empathy

The act of understanding and sharing the feelings of another person from their perspective.

EBP

Evidence-Based Practice, a process in which practitioners integrate the best available research with their clinical expertise and patient values to make decisions about care.