How Can We Determine the Representativeness of a Sample Mean

question 18

Multiple Choice

How can we determine the representativeness of a sample mean for a particular population?

• A)Draw a graph and compare the heights of the bars representing the population and sample means.
• B)Convert the sample mean to a z-score and compare the z-score to the critical value.
• C)Compare the sample mean to the population mean and compare the difference to the criterion.
• D)Compare the sample mean to the population standard deviation and look up its probability.

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Definitions:

Reptiles

Informal amniote subgroup that includes lizards, snakes, turtles, crocodilians.

Hominins

Members of the human family tree, including modern humans and all our ancestors and relatives that are more closely related to us than to chimpanzees and bonobos.

Soft-Bodied Invertebrates

Invertebrate animals that lack a rigid skeletal structure, including organisms such as slugs, worms, and jellyfish.

Slimy Mucus

A thick, slippery secretion produced by mucus membranes to protect and lubricate surfaces.