A Researcher Wished to Evaluate the Operating Life of a Certain

question 85

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 standard deviation.

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Definitions:

Legal Value

Legal Value refers to the concept in contract law that concerns the requirement of consideration to ensure that promises within a contract are enforceable.

Marketing Purposes

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Good Faith Dispute

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A legally binding contract between parties to a dispute, where they agree on the terms to resolve their differences without further litigation.