The Power of a Test Is the Probability That We

question 12

Multiple Choice

The power of a test is the probability that we:

• A) reject the null hypothesis when the alternative hypothesis is false
• B) reject the null hypothesis when the alternative hypothesis is true
• C) accept the null hypothesis when the alternative hypothesis is false
• D) accept the null hypothesis when the alternative hypothesis is true

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Definitions:

Euphotic Zone

The upper layer of a body of water that receives sufficient sunlight for photosynthesis, where most aquatic life is concentrated due to the availability of light.

Phosphate

A chemical compound that is vital for plant growth and is used extensively in fertilizers.

Nitrates

Inorganic compounds made of nitrogen and oxygen, NO3−, that are often used as fertilizers but can contribute to water pollution if overused.

Dissolved Oxygen

The amount of oxygen that is present in water, important for the survival of aquatic life and the health of water ecosystems.