A Time Study of a Certain Service Task Found an Average

question 142

Essay

A time study of a certain service task found an average time of 15 minutes,with a standard deviation of 5 minutes.These figures were based on a sample of 100 measurements.Is the sample large enough that we are 95% confident that standard time is within ±5% of its true value?

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Definitions:

Liberal Position

A political ideology favoring more government intervention in economic matters and more social freedoms, emphasizing equality and social justice.

Charles Murray

An American political scientist and author known for his controversial works on intelligence, socioeconomic status, and public policy.

Social And Economic Change

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Heritage Of Slavery

The social, economic, and cultural legacies and impacts stemming from the history of slavery in a society.