A Researcher Obtains a Negative Value for Chi-Square Statistic

question 56

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:

Observations

Data points collected during an experiment or study.

Degrees Of Freedom

The number of independent values or quantities which can be assigned to a statistical distribution or a system without violating any constraints.

Multiple Regression

A statistical method that predicts the behavior of a dependent variable based on two or more independent variables.

Estimated Regression

A statistical method for estimating the relationships among variables, often used to predict the value of a dependent variable based on values of independent variables.