Question: 18. IRS Accuracy The U.S. General Accounting Office tested the Internal Revenue Service for correctness of answers to taxpayers questions. For 1733 trials, the IRS

18. IRS Accuracy The U.S. General Accounting Office tested the Internal Revenue Service for correctness of answers to taxpayers’ questions. For 1733 trials, the IRS was correct 1107 times and wrong 626 times.

a. Estimate the probability that a randomly selected taxpayer’s question will be answered incorrectly.

b. Is it unusual for the IRS to provide a wrong answer to a taxpayer’s question?

Should it be unusual?

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