Late payment of medical claims can add to the cost of health care. Suppose 71.7% of the claims were paid in fullwhen first submitted for one insurance company. The insurance company developed a new payment system in aneffort to increase this percentage. A sample of 280 claims processed under this system revealed that 223 of the claimswere paid in full when first submitted. Complete parts a and b below.a State the appropriate null and alternative hypotheses. Choose the correct answer below.OA. Ho p≤0.717HA P>0.717***OC. Ho p=0.717HA P#0717OB. Ho: z≤0.717HA: Z>0.717O D. Ho: p20.717HA: P<0.717

From the provided information,71.7% of the claims were paid in full when first submitted for one…

Answered: Late payment of medical claims can add…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Individuals filing federal income tax returns prior to March 31 received an average refund of $1056. Consider the population of “last-minute” filers who mail their tax return during the last five days of the income tax period (typically April 10 to April 15). A researcher suggest that a reason individuals wait until the last five days is that on average these individuals receive lower refunds than do early filers. Develop appropriate hypotheses such that rejection of will support the researcher’s contention. For a sample of 400 individuals who file a tax return between April 10 and April 15, the sample mean refund was $910. Based on prior experience a population standard deviation of o=1600 may be assumed. What is the p-value? At a=.05 , What is your conclusion?
Consumers Energy states that the average electric bill across the state is $60.07. You want to test the claim that the average bill amount is actually greater than $60.07. What are the appropriate hypotheses for this test? Question 12 options: 1) HO: μ ≥ 60.07HA: μ < 60.07 2) HO: μ = 60.07HA: μ ≠ 60.07 3) HO: μ > 60.07HA: μ ≤ 60.07 4) HO: μ ≤ 60.07HA: μ > 60.07 5) HO: μ < 60.07HA: μ ≥ 60.07
Individuals filing federal income tax returns prior to March 31 received an average refund of $1,071. Consider the population of "last-minute" filers who mail their tax return during the last five days of the income tax period (typically April 10 to April 15).
A company manufacturing computer chips finds that 9% of all chips manufactured are defective. Management is concerned that employee inattention is partially responsible for the high defect rate. In an effort to decrease the percentage of defective chips, management decides to offer incentives to employees who have lower defect rates on their shifts. The incentive program is instituted for one month. If successful, the company will continue with the incentive program. a. Write the company's null and alternative hypotheses. Make sure to include the correct parameter, sign and number.Ho: H1: b. In this context describe a Type I error and the impact such an error would have on the company. Management thinks the incentive program was effective, when in fact it did not lower the defective rate from 9%. Management thinks the incentive program did not work, when in fact it did lower the defective rate from 9%. c. In this context describe a Type II error and the impact such an error…
Individuals filing federal income tax returns prior to March 31 received an average refund of $1,051. Consider the population of "last-minute" filers who mail their tax return during the last five days of the income tax period (typically April 10 to April 15). (a) A researcher suggests that a reason individuals wait until the last five days is that on average these individuals receive lower refunds than do early filers. Develop appropriate hypotheses such that rejection of H0 will support the researcher's contention. H0: μ > $1,051, Ha: μ ≤ $1,051 H0: μ = $1,051, Ha: μ ≠ $1,051 H0: μ ≥ $1,051, Ha: μ < $1,051 H0: μ ≤ $1,051, Ha: μ > $1,051 H0: μ < $1,051, Ha: μ ≥ $1,051 (b)For a sample of 400 individuals who filed a tax return between April 10 and 15, the sample mean refund was $910. Based on prior experience, a population standard deviation of σ = $1,600 may be assumed. What is the test statistic? (Round your answer to two decimal places.) What is the…
Independent studies show that 26 out of 40 r/s full-time students favor a shorter semester system, while 38 out of 50 r/s part-time students favor the same. Construct a 98% c.i. for the difference between the overall percentage of full-time students favoring a shorter semester system and that of part-time students.
Symbolically state the alternative hypotheses for the following claim: The mean salary for registered nurses in San Diego, California is greater than is $104,000.

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