Waymire Company prepared the partial income statements presented below for 2019 and 2018. 2019 2018 $483,700 $538,200 Sales revenue Cost of goods sold: $32,100 $39,300 Beginning inventory 292,700 343,200 Purchases 324,800 Cost of goods available for sale 382,500 (39,300) 285,500 Ending inventory (46,800) 335,700 $198,200 $202,500 Gross margin (151,600) (167,200) Operating expenses $46,600 $35,300 Income before taxes During 2020, Waymire's accountant discovered that ending inventory for 2018 had been understated by $6,500. Health insurers are beginning to offer telemedicine services online that replace the common office visit. Wellpoint provides a video service that allows subscribers to connect with a physician online and receive prescribed treatments. Wellpoint claims that users of its LiveHealth Online service saved a significant amount of money on a typical visit. The data shown below ($), for a sample of 20 online doctor visits, are consistent with the savings per visit reported by Wellpoint. 90 34 41 104 82 53 55 50 37 77 46 95 92 75 72 76 93 98 55 80 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: $ 61.32 to $ 79.93 per visit Waymire Company prepared the partial income statements presented below for 2019 and 2018. 2019 2018 $483,700 $538,200 Sales revenue Cost of goods sold: $32,100 $39,300 Beginning inventory 292,700 343,200 Purchases 324,800 Cost of goods available for sale 382,500 (39,300) 285,500 Ending inventory (46,800) 335,700 $198,200 $202,500 Gross margin (151,600) (167,200) Operating expenses $46,600 $35,300 Income before taxes During 2020, Waymire's accountant discovered that ending inventory for 2018 had been understated by $6,500. Health insurers are beginning to offer telemedicine services online that replace the common office visit. Wellpoint provides a video service that allows subscribers to connect with a physician online and receive prescribed treatments. Wellpoint claims that users of its LiveHealth Online service saved a significant amount of money on a typical visit. The data shown below ($), for a sample of 20 online doctor visits, are consistent with the savings per visit reported by Wellpoint. 90 34 41 104 82 53 55 50 37 77 46 95 92 75 72 76 93 98 55 80 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: $ 61.32 to $ 79.93 per visit