Please Help with some stats quesitons explanations would be

Please Help with some stats quesitons (explanations would be greatly appreciated)

Here is the commute time data for #8

Consider a sample with data values of 10, 20,12,17, and 16. Compute the mean and median. The average number of minutes Americans commute to work is 27.7 minutes (Sterling\'s Best Places, April 13, 2012). The average commute time in minutes for 48 cities are in the.xls file CommuteTime. What is the mean commute time for these 48 cities? Compute the median commute time. Compute the mode. Compute the third quartile. Consider the following data. What is the mean growth rate over these five periods (be sure to use the appropriate mean)? In automobile mileage and gasoline-consumption testing, 13 automobiles were road tested for 300 miles in both city and highway driving conditions. The following data were recorded for miles-per-gallon performance. Use the mean, median, and mode to make a statement about the difference in performance for city and highway driving.

Solution

7.

As

Mean = Sum(x)/n

Then, as n = 5,

Mean = (10+20+12+17+16)/5 = 15 [ANSWER]

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Ordering the data,

10,12,16,17,20

As the middle data is 16, then

median = 16. [ANSWER]

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