In the Formula $$\bar { X } \pm z _ { a/2 } ( \sigma / \sqrt { n } )$$

question 45

Multiple Choice

In the formula $$\bar { X } \pm z _ { a/2 } ( \sigma / \sqrt { n } )$$ , the ?/2 refers to:

• A)the probability that the confidence interval will contain the population mean.
• B)the probability that the confidence interval will not contain the population mean.
• C)the area in the lower tail or upper tail of the sampling distribution of the sample mean.
• D)the level of confidence.

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Definitions:

Payroll Tax Expense

Taxes that are incurred by an employer based on the salaries and wages of employees, including taxes like Social Security and Medicare in the United States.

FICA

The Federal Insurance Contributions Act tax is a United States federal payroll tax imposed on both employees and employers to fund Social Security and Medicare.

SUTA

State Unemployment Tax Act; a tax paid by employers at a state level to fund unemployment benefits for workers who lose their jobs.

FUTA

The Federal Unemployment Tax Act, which imposes a payroll tax on businesses to fund state workforce agencies.