Exercise 3-81 (Algo) (LO3-1, LO3-4, LO3-5) A sample of 25 undergraduates reported the following dollar amounts of entertainment expenses last year: 769 691 699 730 711 765 702 718 719 712 768 688 757 695 768 735 709 758 708 693 736 700 687 772 715 Click here for the Excel Data Fileb. What are the range and standard deviation? (Round the "Standard deviation" to 2 decimal places.) Standard deviation c. Use the Empirical Rule to establish an interval that includes about 95% of the observations. (Round your answers to 2 decimal places.) _:-:I