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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