Understandable Statistics This first assignment requires you to obtain a histogram and ogive and present
Understandable Statistics
This first assignment requires you to obtain a histogram and ogive and present your data using excel (or open office).
- Go to http://college.cengage.com/mathematics/brase/understandable_statistics/9e/resources/datasets/sv/index.html and download the sunspot data.
- You will create a frequency distribution with 5 bins. What is your class width? Fill in the table:
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class | lower limit | upper limit | lower boundary | upper boundary | frequency | cumulative
1
2
3
4
5
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3. Present your table graphically using excel and its histogram capabilities (as discussed in Lecture 2).
4. Create an ogive as follows: For each of your 5 bins enter your class boundaries (there are of course 6 boundaries starting from lower boundary first class to upper boundary 5th class) and the associated cumulative frequencies side by side in two columns. Now create a scatterplot of these pairs. Feel free to add appropriate labels for your axes to make the chart easier to read. (Note: to produce a scatter plot in Excel 2007 you select your data, Insert->Scatter then choose Scatter with Smooth Lines and Markers. In Excel 2003 very similar: Insert->Chart->Scatter)
Deliverable: Word Document
