Information about sampling and sampling distribution

Assignment Help Basic Statistics

Reference no: EM1394801

A health services provider has been reimbursed by a national health insurance organization for a large number of services. It appears that overpayments may have occurred on many of the reimbursements owing to errors made during the billing process or to up-coding (billing for a more complicated service than was actually provided). Overpayments in the past have been skewed, with a standard deviation of $12.00 per service provided. The health services provider claims that no overpayments have occurred on average, that is, that the actual mean overpayment is $0. An audit of a random sample of 36 reimbursements was conducted, and the sample mean overpayment was $4.00.

a. Determine the probability that a sample mean overpayment is greater than or equal to that found in the audit if the provider's claim is true.

b. Determine the probability that the sample mean overpayment for the audited reimbursements will be between $2.00 and $4.00 if the provider's claim is correct.

c. Determine the probability that the total overpayment to the provider for the sampled reimbursements will be greater than or equal to $144.00 if the provider's claim is true.

Reference no: EM1394801

Questions Cloud

Mary''s mugs produces and sells various types of ceramic mugs : Mary's Mugs produces and sells various types of ceramic mugs. The business began operations on January 1, Year 1, and its costs incurred during the year include these:

Lower and upper bound : An article reports that when each football helmet in a random sample of 44 suspension-type helmets was subjected to a certain impact test, 25 showed damage.

Difference in any of the population means : You have 4 groups that you are trying to find if there is a difference in any of the population means. In each group there are 7 observations. The given level of significance is an alpha of .005. Your MSA is 6,200 and your MSW is 1,000. Will you r..

Explain data communications and network infrastructure : Explain the data communications and network infrastructure which Dell must put to manage its internal communications and external communications with Intel.

Information about sampling and sampling distribution : A health services provider has been reimbursed by a national health insurance organization for a large number of services. It appears that overpayments may have occurred on many of the reimbursements

Balance the equation : What is the pH of the solution if [OH-] of an ammonia solution is 1.0 X 10-2M?

Confidence interval for the total population of students : In a class of 40, 16 driver a car made outside the United States. What is the confidence interval for the total population of students at the 95% level?

Creating hydrogen bonds between the backbone atoms : A 14-residue peptide, TRWVKVNGKWIKQA, in the context of a protein forms a hairpin, consisting of two anti-parallel ?-strands connected by a turn.

Write the product and balance the equation : Compute the number of mL of 2.00M H2SO4 required neutralizing 125.5mL of 1.2M KOH

User Account

All Pages