Definitions
There is 1 meaning of the phrase
Chi-Square Statistic.
Chi-Square Statistic - as a noun
A measurement of how expectations compare to results, used in the common chi-squared tests for goodness of fit of an observed distribution to a theoretical one, the independence of two criteria of classification of qualitative data, and in confidence interval estimation for a population standard deviation of a normal distribution from a sample standard deviation.
Example: "The chi-square statistic compares the observed count in each table cell to the count which would be expected under the assumption of no association between two or more groups, populations, or criteria."
Example Sentences
"The chi-square statistic is a measure of how well an observed distribution fits an expected distribution."
"To calculate the chi-square statistic, you need to compare the observed frequencies with the expected frequencies."
"Researchers often use the chi-square statistic to determine if there is a significant difference between groups."
"In this study, the chi-square statistic showed a strong association between smoking and lung cancer."
"A small chi-square statistic suggests that the observed data closely match the expected data."
