Which of These Hypotheses Cannot Be Tested by an Experiment

question 63

Multiple Choice

Which of these hypotheses cannot be tested by an experiment?

• A) Biological interactions between barnacle species are responsible for their distribution patterns.
• B) Night-feeding fishes rely on their sense of smell to locate prey.
• C) The growth of salt marsh grass is limited by nitrogen availability.
• D) Certain humpback whale behaviors are important for attracting a mate.
• E) Goldfish prefer to eat brightly-colored foods.

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Definitions:

Standard Error

A statistical measure of the variability or precision of a sample mean, as an estimate of the population mean.

Population Average

The mean value of a set of characteristics or measurements for the entire population.

Population Standard Deviation

A measure of the dispersion or spread of a set of data points in a population, showing how much variation exists from the average.

Square Root

A mathematical function that produces the original number when multiplied by itself.