Question
In: Statistics and Probability
An auditor for a government agency was assigned the task of evaluating reimbursement for office visits...
An auditor for a government agency was assigned the task of evaluating reimbursement for office visits to physicians paid by Medicare. The audit was conducted on a sample of 75 reimbursements, with the following results:
- In 12 of the office visits, there was an incorrect amount of reimbursement.
- The amount of reimbursement was xbar = $93.70, s = $34.55.
- At the 0.05 level of significance, is there evidence that the population mean reimbursement was less than $100?
- At the 0.05 level of significance, is there evidence that the proportion of incorrect reimbursements in the population was greater than 0.10?
- Discuss the underlying assumptions of the test used in (a).
- What is your answer to (a) if the sample mean equals $90?
- What is your answer to (b) if 15 office visits had incorrect reimbursements?
Solutions
orchestra answered 1 year agoRelated Solutions
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Year
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$(110,000)
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4 --------------- 33,000 --------------- 0
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You have been assigned the task of evaluating two mutually exclusive projects with the following projected...
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YEAR PROJECT A CASH FLOW
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-110,000
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2
30,000
0
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30,000
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2
32,000
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