The Internal Revenue Service Wishes to Study the Time Required

question 77

Multiple Choice

The Internal Revenue Service wishes to study the time required to process tax returns in three regional centers.A random sample of three tax returns is chosen from each of three centers.The time (in days) required to process each return is recorded as shown below. The appropriate test to use to compare the means for all three groups would be

• A)test for independent samples.
• B)one-factor ANOVA.
• C)repeated two-sample test of means.
• D)test for outliers.

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Definitions:

Per Thousand

A term used to denote rates or quantities calculated per thousand units.

Annual Payments

Regular payments made once a year, often as part of a financial agreement or obligation.

Medical Bills

Documents or statements that detail charges for medical services and treatments provided to a patient.

Endowment Policy

An endowment policy is a life insurance contract designed to pay a lump sum after a specific term (on its 'maturity') or on death.