An Environmental Group at a Local College Is Conducting Independent

question 121

Multiple Choice

An environmental group at a local college is conducting independent tests to determine the distance a particular make of automobile will travel while consuming only 1 gallon of gas. They test a sample of five cars and obtain a mean of 28.2 miles. How many cars should the environmental group test if they wish to estimate μ, mean miles per 1 gallon, to within .5 miles and be 99 percent confident? Assume a population standard deviation of 2.7 miles.

• A) 25
• B) 124
• C) 194
• D) 618
• E) 619

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Definitions:

Depreciation

The methodical distribution of a physical asset's cost over its expected lifespan, representing deterioration or becoming outdated.

Depletion Expense

The allocation of the cost of natural resources over the period they are consumed.

Natural Resource

Naturally occurring materials such as water, minerals, and forests that can be utilized by humans for economic gain or sustenance.

Reclamation Costs

Expenses associated with the process of restoring land after it has been used or damaged, such as in mining activities.