A sample of 25 undergraduates reported the following dollar

A sample of 25 undergraduates reported the following dollar amounts of entertainment expenses last year: 741 754 771 773 680 682 728 775 708 700 714 731 756 699 772 683 778 739 769 713 746 758 710 771 696 Picture Click here for the Excel Data File a. Find the mean, median and mode of this information. (Round your answers to 2 decimal places.) Mean $ Median $ Mode b. What are the range and standard deviation? (Round your answers to 2 decimal places.) Range $ Standard deviation $ c. Use the Empirical Rule to establish an interval which includes about 95 percent of the observations. (Round your answers to 2 decimal places.) The interval is from $ up to $ .

Solution

a) Mean = $ 733.88

Median =$ 739

Mode = $ 771

b) Range = $ 98

Standard Deviation = $ 33.17

c) The interval is from $ 719.93 to $747.83

Refer the following excel table