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If we use the 2 goodness-of-fit to test for the differences among 4 proportions,the degrees of freedom is equal to:
Federal Income Tax
A charge imposed by the United States federal government on the yearly income of individuals, corporations, trusts, and other legal bodies.
Withholding Allowance
Withholding allowance is an exemption that reduces how much income tax an employer deducts from an employee's paycheck, based on the number of allowances claimed.
Federal Income Tax
A financial duty enforced by the federal government on the yearly revenues of persons, corporations, trusts, and different legal organizations.
Gross Earnings
The total amount of money earned by an individual or business before any deductions or taxes are applied.
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