Using Its Authority from a New Rule Issued Under the Clean

question 59

Multiple Choice

Using its authority from a new rule issued under the Clean Air Act in 2011,the EPA

• A)can require a 90% reduction of mercury emissions from power plants.
• B)can reintroduce leaded gasoline beginning in 2014.
• C)can permit chromium,tin and arsenic in fungicides dispensed with fertilizers.
• D)will require coal-fired power plants to remove heavy metals from coal before it is burned.

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Definitions:

Sample Mean

The average value of a sample set of numbers, estimated from a subset of a population.

Margin of Error

Represents the maximum amount by which the sample results are expected to differ from the actual population parameter.

T Distribution

A probability distribution used in statistics for hypothesis testing, especially with small sample sizes or unknown population standard deviations.

T Distribution

A type of probability distribution that is symmetric and bell-shaped but has heavier tails than the normal distribution, used especially in small sample analysis.