A Researcher Reports the Following Results for a Chi-Square Test $\chi$

question 26

Multiple Choice

A researcher reports the following results for a chi-square test: $\chi$ ²(1) = 5.386,p < .05 (V = 0.224) .If this test were a test for independence,then how many groups were observed?

• A)1
• B)2
• C)3
• D)4

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Definitions:

Standard Deviation

Standard deviation is a measure that quantifies the amount of variation or dispersion of a set of data values from their mean.

Standard Normal Random Variable

A normally distributed random variable characterized by a mean of 0 and a standard deviation of 1.

P

A probability value that reflects the likelihood of obtaining test results at least as extreme as the results actually observed, during the assumption that the null hypothesis is correct.

z

A statistical measure that represents the number of standard deviations a data point is from the mean.