Examlex
The denominator of a return ratio will be some measure of the company's income for the period.
More Than Two Categories
Refers to situations or conditions where a variable or outcome can fall into more than two distinct groups or classifications.
Z-test
A statistical test used to determine if there is a significant difference between sample and population means, assuming the population variance is known.
Chi-squared Test
The Chi-squared test is a statistical method used to determine if there is a significant difference between the expected and observed frequencies in one or more categories.
Test Statistic
A quantity derived from sample data used to make a decision about a hypothesis test.
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