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A private health fund auditor is assigned the task of evaluating benefits paid to members for dental consultation claims. The audit is conducted on a
A private health fund auditor is assigned the task of evaluating benefits paid to members for dental consultation claims. The audit is conducted on a sample of 85 claims.
- In 10 of the consultations, an incorrect amount of
- reimbursement was provided.
- Theamountofbenefitwas:X_5$98.95,S5$34.55.
- At the 0.05 level of significance, is there sufficient evidence that the mean benefit is less than $100?
- At the 0.05 level of significance, is there sufficient evidence that the proportion of incorrect benefit in the population is 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 consultations had incorrect reimbursements?
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