Descriptive_Statistics_&_Graphing_Data

Descriptive Statistics & Graphing Data (I4) Sarah Martin RES 341 September 1, 2010 Stephen Loro Descriptive Statistics & Graphing Data (I4) Research Problem: The research problem is that the average commute time from point A to point B may vary based on origin and departure time. Research Question: Is there a difference in average commute time between A-B and B-A' Data Collection Trip | Travel Time (Min:Sec) | | A-B | B-A | 1 | 14:25 | 16:24 | 2 | 13:21 | 15:35 | 3 | 14:26 | 14:45 | 4 | 13:45 | 15:36 | 5 | 12:45 | 14:55 | 6 | 13:25 | 15:23 | 7 | 13:50 | 14:54 | 8 | 13:52 | 14:45 |   | Point A | 463 West Monte Vista Ave, Vacaville, CA | Point B | 1636 New Jersey St, Fairfield, CA | Distance | 9.45 miles 14:30 minutes | Statistical Methods: The preceding data derived the following calculations using the descriptive statistics section of the Megastat tool in Microsoft Excel: Descriptive statistics | | | | | |   | A-B | B-A | count | 8 | 8 | mean | 0.571962 | 0.636892 | sample variance | 0.000545 | 0.000570 | sample standard deviation | 0.023353 | 0.023871 | minimum | 0.53125 | 0.61458333 | maximum | 0.60138889 | 0.68333333 | range | 0.07013889 | 0.06875 | | | | standard error of the mean | 0.008256 | 0.008440 | | | | confidence interval 95.% lower | 0.552438 | 0.616936 | confidence interval 95.% upper | 0.591485 | 0.656849 | half-width | 0.019523 | 0.019956 | | | | skewness | -0.359442 | 1.042170 | kurtosis | 0.021423 | 0.720782 | coefficient of variation (CV) | 4.08% | 3.75% | | | | normal curve GOF | | | p-value | .3173 | .3173 | chi-square(df=1) | 1.00 | 1.00 | E | 2.00 | 2.00 | O(-0.67) | 1 | 2 | O(+0.00) | 2 | 2 | O(+0.67) | 3 | 3 | O(inf.) | 2 | 1 | Runs Plot: Results: The type of data collected that was collected for this research was qualitative discrete. Nominal intervals were used in collecting data. When one looks at the results of the data, one would have to realize that the traffic going in one direction would be different in the opposite direction. Because of this, the travel time would be different. References Steven Loro, University of Phoenix. (2010). Classroom Syllabus. Retrieved August 11, 2010, RES 341/342 from: http://classroom.phoenix.edu/afm211/secure/view-thread.jspa'threadID=24870094 Steven Loro, University of Phoenix. (2010). Classroom PowerPoint. Retrieved August 11, 2010, RES 341/342 from: http://classroom.phoenix.edu/afm211/secure/view-thread.jspa'threadID=24957195