Mathematics, 03.07.2020 23:01 lolmaster101
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. 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.
90 34 41106 84 5355 48 4175 49 9792 73 7480 94 10256 83
Required:
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 (to 2 decimals).
Answers: 3
(2)
(3)
represent the sample mean for the sample 
population mean (variable of interest)
(1)
and 
, and the critical value would be 
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