Wellpoint is a health insurer that provides online video doctor visits as a way to save patients money. Below are the amounts saved ($) by a sample of patients in 2014. Use it to answer/do the following. For (a), round your answer to 2 decimal places. For (b)-(d), report 2 decimal values + 2 decimal values, like 1.23 ± 4.56.

92 105 56 76 93 78 53 34 83 49 90 45

(a) Estimate the mean (average) savings.

(b) Develop a 90% confidence interval for the mean in (a).

(c) Develop a 95% confidence interval for the mean in (a).

(d) Develop a 99% confidence interval for the mean in (a).

(e) Would it be okay for Wellpoint to claim they save patients about $100 on average?

(f) Would it be okay for Wellpoint to claim they save patients about $80 on average?