A Researcher Wished to Evaluate the Operating Life of a Certain

question 23

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: 10, 8, 12, 3, 6, 7, 2, 10

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Definitions:

Clerical Model

Involves administrative tasks such as typing, filing, and handling telephone inquiries, often following a set routine or procedure.

Human Resource Model

A framework for managing the workforce of an organization, focusing on policies, systems, and practices for maximizing employee performance and satisfaction.

Chief Executive Officers

The highest-ranking executives in a company, responsible for making major corporate decisions, overseeing the overall operations and resources, and acting as the main point of communication between the board of directors and corporate operations.

Human Resource Departments

Divisions within organizations responsible for managing employee-related processes like hiring, training, benefits, and compliance.