A Researcher Wished to Evaluate the Operating Life of a Certain

question 20

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 mode.

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Definitions:

Cultural Influences

The impact of societal beliefs, customs, practices, and behaviors on an individual or community.

Emotional Development

Refers to changes in feelings, emotional reactions, and understanding of emotions over the lifespan.

Express Positive Emotions

Involves the ability to convey feelings of happiness, satisfaction, love, and joy through verbal and non-verbal communication.

Cultural

Relating to the ideas, customs, and social behavior of a society or a specific group of people.