The local branch of the IRS spent an average of 21 minutes helping each of 10 people prepare their t
Question: The local branch of the IRS spent an average of 21 minutes helping each of 10 people prepare their tax returns. The standard deviation was 5.6 minutes. A volunteer tax preparer spent an average of 27 minutes helping 14 people prepare their taxes. The standard deviation was 4.3 minutes. At α = 0.02, is there a difference in the average time spent by the two services? Find the 98% confidence interval for the two means.
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Answer: The answer consists of 3 pages
Deliverables: Word Document
Deliverables: Word Document