Examlex
Businesspeople often use their sense of what is happening to reach decisions that might be better made if someone had kept a record of what had taken place already.In other words,empirical analysis can be helpful.
Chi-squared Test
An analytical test designed to evaluate whether there's a significant discrepancy between frequencies observed and those anticipated in various categories.
Contingency Table
A table used in statistics to display the frequency distribution of variables, showing the observed number of cases in each category.
Nominal Data
Data categorized without a natural order or ranking among the categories, such as gender or race.
Squared Difference
The result of squaring the difference between two values, often used in statistical calculations like variance.
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