Question

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.

93	33	39
104	84	53
54	50	41
76	48	95
94	74	75
80	95	100
53	83

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).

95% confidence interval: $ to $ per visit

Answer 1

Assuming the population is roughly symmetric and approximately normal, we can compute a 95% confidence interval for the mean savings for a televisit to the doctor as opposed to an office visit.

The 95% confidence interval is