A Researcher Obtains a Negative Value for Chi-Square Statistic

question 18

Multiple Choice

A researcher obtains a negative value for chi-square statistic.What can you conclude because the value is negative?

• A)The observed frequencies are consistently larger than the expected frequencies.
• B)The expected frequencies are consistently larger than the observed frequencies.
• C)There are large differences between the observed and expected frequencies.
• D)The researcher made a mistake.The value of chi-square cannot be negative.

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Definitions:

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The movement of molten rock that emerges from a volcano or fissure onto the Earth's surface, where it solidifies as it cools.

Dike Unit

It is a geological structure consisting of a major vertical or steeply-dipping sheet-like body of intruded igneous rock that cuts through older rocks.

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The period of time it takes for a radioactive substance to decrease to half its original amount.

Granite Unit

A large body of igneous rock with a granular and phaneritic texture, predominantly composed of quartz and feldspar.