ey reports that the ave 191/cfi/420!/4/[email protected]:57.6 a. Provide a point estimate of the mean annual automobile insurance premium in Michigan. b. Develop a 95% confidence interval for the mean annual...

Problem 21.

Extracted text: ey reports that the ave 191/cfi/420!/4/[email protected]:57.6 a. Provide a point estimate of the mean annual automobile insurance premium in Michigan. b. Develop a 95% confidence interval for the mean annual automobile insurance premium in Michigan. c. Does the 95% confidence interval for the annual automobile insurance premium in Michigan include the national average for the United States? What is your inter- pretation of the relationship between auto insurance premiums in Michigan and the national average? 21. Telemedicine. Health insurers are beginning to offer telemedicine services online that replace the common office visit. Wellpoint provides a video service that allows subscribers to connect with a physician online and receive prescribed treatments (Bloomberg Businessweek, March 4-9, 2014). Wellpoint claims that users of its LiveHealth Online service saved a significant amount of money on a typical visit. The data shown below ($), for a sample of 20 online doctor visits, are consistent with the savings per visit reported by Wellpoint. 40 93 83 93 92 96 82 49 78 105 73 40 48 53 56 100 55 74 34 76 Assuming the population is roughly symmetric, construct a 95% confidence interval for the mean savings for a televisit to the doctor as opposed to an office visit. We've updated our read aloud feature! Give it a try here. ts Reserved. May not be copied, scanned, or duplicated. in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and content does not materially affect the overall learning experience. Cengage Learning reserves the right to remove additional content at any time if subsequent rights i gage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. WCN 02-200-202 Aa 11:07 AM 10/17/20 GP