SELECT ALL THAT APPLY

question 49

Multiple Choice

SELECT ALL THAT APPLY.
-If the sample standard deviation of a sample N = 1001 is 2.60 and sample mean is 2.94,then

• A)estimate standard error is .8.
• B)the upper bound with 95% confidence level is 3.10.
• C)the lower bound with 95% confidence level is 2.78.
• D)the Z value corresponding to a 95% confidence level is 2.58.

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Definitions:

Federal Income Tax

A tax levied by the federal government on the annual earnings of individuals, corporations, trusts, and other legal entities.

Medicare Taxes

Taxes withheld from income to fund Medicare, the United States' federal healthcare program for individuals aged 65 and older and some younger people with disabilities.

Marginal Tax Rates

The rate of tax applied to your last dollar of income, representing what percentage of any additional earned income will be taken as tax.

Average Tax Rates

The ratio of the total amount of taxes paid to the total income, providing a measure of the tax burden.