Which of the Following Is Always True for a Chi-Square

question 12

Multiple Choice

Which of the following is always true for a chi-square test for goodness of fit or a test for independence?

• A)Σf_e = n
• B)Σf_e = Σf_o
• C)Both Σf_e = n and Σf_e = Σf_o
• D)Neither Σf_e = n nor Σf_e = Σf_o

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Definitions:

Null Hypothesis

It is a hypothesis that assumes no significant difference or effect; it is the statement tested in statistical hypothesis testing to determine the likelihood of the observed data.

Statistically Significant

A determination that the observed difference or relationship in a statistic is not likely due to chance alone, according to a pre-specified threshold of significance.

Confidence Interval

A range of values derived from sample statistics that is likely to contain the true value of an unknown population parameter.

Null Hypothesis

In statistics, a hypothesis that proposes no significant difference or effect; the hypothesis that a researcher tries to disprove.