If a Researcher Is Using the Sign Test and Has

question 90

Multiple Choice

If a researcher is using the sign test and has 13 positive signs and 19 negative signs, then the test value is:

• A) 19
• B) -6
• C) 6
• D) 13

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Definitions:

Leaching

Process by which water moving through soil removes nutrients from it.

Nutrients

Substances that provide nourishment essential for the growth and maintenance of life, including proteins, carbohydrates, fats, vitamins, and minerals.

Erosion

The process by which natural forces remove soil, rock, or dissolved material from one location and transport it to another.

Phytoremediation

The use of plants to remove, detoxify, or immobilize environmental contaminants in soil or water through natural processes.