A Chi-Square Test for Independence Is Used to Evaluate the Relationship

question 71

Multiple Choice

A chi-square test for independence is used to evaluate the relationship between two variables.If both variables are classified into 2 categories,then what is the df value for the chi-square statistic?

• A)df = 1
• B)df = 2
• C)df = 3
• D)Cannot determine the value of df from the information provided

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Definitions:

P-chart

A type of control chart used in statistical quality control to monitor the proportion of defective items in a process over time.

Minimum Sample Size

The smallest quantity of data required to achieve a certain level of reliability or precision in statistical analysis.

Samples

A subset of a population selected for measurement, observation, or questioning to provide statistical information about the whole.

Standard Deviation

Standard Deviation is a statistic that measures the dispersion or variability of a dataset relative to its mean, indicating how spread out the data points are.