Computer Lab 1_FA2014

Computer Lab 1_FA2014 - Computer Lab 1 Friday Note Please...

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Computer Lab 1 Friday, January 24, 2014 Note: Please type your answers and include any relevant portions of your SPSS output. Write full sentences. Don’t assume that I know how to read the SPSS output. Once finished, upload your file to Blackboard. 1. The National Climate Data Center gave the data on annual rainfall (in inches) for Medford, Oregon, from 1950 to 2008. For this questions use dataset called ex0434.sav a. Construct a relative frequency distribution for the Medford rainfall data and a histogram. b. Describe the shape of the histogram. c. Construct a cumulative relative frequency plot and based on it: I. Approximately what proportion of years had annual rainfall less than 15.5 inches? II. Approximately what proportion of years had annual rainfall less than 25 inches? III. Approximately what proportion of years had annual rainfall between 17.5 and 25 inches? What to do in SPSS? Analyze → Descriptive Statistics → Frequencies. Under Charts select Histogram. d. Report the five number summary for the data set. e. Are there outliers in this dataset? If so, which observations are mild outliers? Which are
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