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:

Pregnancy Discrimination Act

A federal law in the United States that prohibits discrimination on the basis of pregnancy, childbirth, or related medical conditions in the workplace.

Business Necessity

A business necessity is a practice that is important for the safe and efficient operation of the business.

Disparate Impact Discrimination

A form of discrimination that occurs when a neutral policy disproportionately affects a protected group, even if the policy was not intended to be discriminatory.

Occupational Safety and Health Act

United States legislation aimed at ensuring workplace safety and health standards to prevent worker injuries and illnesses.