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You may need to use the appropriate appendix table or technology to answer this question. Health insurers are beginning to offer telemedicine services online that replace the common office visit. A company provides a video service that allows subscribers to connect with a physician online and receive prescribed treatments. The company claims that users of its 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 the company. 96 38 44 109 87 59 60 53 44 80 52 100 97 78 77 82 97 104 57 86 Assuming the population is roughly symmetric, construct a 95% confidence interval for the mean savings in dollars for a televisit to the doctor as opposed to an office visit. (Round your answers to the nearest cent.) $ to $Carpetland salespersons average $8,000 per week in sales. Steve Contois, the rm's vice president, proposes a compensation plan with new selling incentives. Steve hopes that the results of a trial selling period will enable him to conclude that the compensation plan increases the average sales per salesperson. (a) Develop the appropriate null and alternative hypotheses. 0 Ho: 0 > 8,000 H :p g 8,000 O Ho: 0 g 8,000 H3: ,0 > 8,000 O H0: {.1 a 8,000 H3: 0 8,000 when the plan does not increase sales. "his mistake could result in implementing line plan when it would not help. (c) What is the type 11 error in this situation? What are the consequences of making this error? 0 It would be concluding p 8,000 when the plan does increase sales. This mistake could result in not implementing a plan that would increase sales. 0 It would be concluding p 8,000 when the plan does not increase sales. This mistake could result in implementing the plan when it would not help. The following results come from two independent random samples taken of two populations. W1 W2 n1=60 n2=25 X1 = 13.6 X2 = 11.6 01:2.1 02:3 (a) What is the point estimate of the difference between the two population means? (Use xl x2.) (b) Provide a 90% confidence interval for the difference between the two population means. (Use ;1 )7? Round your answers to two decimal places.) |:| to |:| (c) Provide a 95% condence interval for the difference between the two population means. (Use ;1 )72. Round your answers to two decimal places.) |:|to:|