A Researcher Wished to Evaluate the Operating Life of a Certain

question 62

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 range.

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Definitions:

Identity Status

A concept in psychology that categorizes the process of identity development in adolescents into different statuses based on their exploration and commitment to values, beliefs, and goals.

Mark

A symbol, sign, or indication of something; in an academic context, it often refers to a grade or score.

Identity Diffusion

Identity status, described by Marcia, that is characterized by absence of commitment and lack of serious consideration of alternatives.

Adolescents

Individuals in the transitional stage of development between childhood and adulthood, typically between the ages of 13 and 19.