Summarizing data in a display is important. For example, newspapers frequently display pie charts. Businesses often study sales using histograms. For this discussion, you will collect quantitative data from the Internet or StatCrunch. Then, you will construct a histogram of your data.
Collect 50 or more quantitative (numerical) raw data items on a topic that interests you. You may use data from any one of the following four sources:
Collect 50 or more quantitative (numerical) raw data items on a topic that interests you. You may use data from any one of the following five sources:
If you want to obtain data from the Internet, refer to the Module Notes on how to use StatCrunch This to bring this data into StatCrunch. Be sure to cite the source by providing the link in your discussion post.
You may use one of the many data sets already available within StatCrunch (Links to an external site.). Just click on the data set of your choice and it will be immediately loaded into StatCrunch. Be sure to state in the discussion that it is data from StatCrunch. (Note: If on the StatCrunch homepage (Links to an external site.), these data sets can be accessed by selecting Data sets under Data)
The Sullivan Statistics Survey
The data is found in StatCrunch by clicking on this link: Response to Sullivan Statistics Survey (Links to an external site.). Here is a link to the actual survey questions Download survey questions[PDFfile size 1.3 MB].
Make sure your data set is large enough (50 items).
Once you have found your data, paste it into StatCrunch if it is not already there. Copy the data, and then go to StatCrunch (Links to an external site.), click on Open StatCrunch, and then click on Data, then Load Data, then from Paste. Then, paste your data into the window box provided. Then, save any changes in StatCrunch by clicking on Load Data at the very bottom.
Then, construct a histogram from your data. The Technology Step-by-Step section at the end of Section 2.2 of your textbook, under StatCrunch (before the end-of-section problems) explains how to construct a histogram using StatCrunch. You may do either a frequency or relative frequency histogram. Here is a video on making histograms using StatCrunch: Histograms in StatCrunch Histograms in StatCrunch (Links to an external site.)) [Video file][4 min 45 sec]. https://www.youtube.com/watch?v=TAFCnd_3Fos&list=PLBE055F65E43B4973
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