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A Mining Company Made Some Changes to Their Mining Process

question 32

Essay

A mining company made some changes to their mining process in an attempt to save fuel. Before the changes were made, it took an average of 20 gallons of diesel fuel to mine 1,000 pounds of copper. Suppose the standard deviation of fuel used per 1,000 pounds of copper mined is 6 gallons. After the changes were made, the company only used an average of 18 gallons of diesel for the next 30,000 pounds of copper mined.
A) How unusual would it be to get a sample average of 18 gallons or less for 30,000 pounds of copper mined if the changes to the mining process had no effect?
B) Do you think the changes in the mining process actually lowered the fuel used? Explain.

Acknowledge the rights and protections afforded to corporations and individuals, including speech and privacy rights.

Understand the system of checks and balances designed to prevent abuses of power.

Identify the principles underlying procedural and substantive due process, including the equal protection clause.

Recognize the limitations and protections provided by the free exercise and establishment clauses regarding religion.

Definitions:

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The network of nerve cells and fibers that transmits nerve impulses between parts of the body, regulating and coordinating bodily functions.

Holmes and Rahe

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Significant Stressor

An event or situation that causes a substantial level of stress, significantly impacting an individual's psychological or physical well-being.

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The event of losing one's partner through death, which can be a significant psychological stressor and life-changing event.