Histograms Made Easy

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Creating Histograms with a ready-made Excel template.

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Histograms Made Easy

  1. 1. B Heard<br />Histograms Made EasyStatistics For Decision Making<br />Not to be used, posted, etc. without my expressed permission. B Heard<br />
  2. 2. Before we get started, go to <br />http://highered.mcgraw-hill.com/sites/0070620164/student_view0/excel_templates.html<br />And download/save the “Histogram” File to your computer<br />Histograms Made Easy<br />Not to be used, posted, etc. without my expressed permission. B Heard<br />
  3. 3. Histograms Made Easy<br /><ul><li>Now on your computer open the file you saved
  4. 4. The first thing you need to do is go to the Review Tab and click “Unprotect Sheet” </li></ul>Not to be used, posted, etc. without my expressed permission. B Heard<br />
  5. 5. Histograms Made Easy<br /><ul><li>We will be looking at a set of 30 data points. The data is MLB team home runs for the 2009 season.</li></ul>We will paste our data into the green column labeled Data making sure to clear any cells leftover from the previous data set.<br />In the case of the home run data we have 30 data points so I want to make sure that the old data left over is cleared before moving on.<br />Not to be used, posted, etc. without my expressed permission. B Heard<br />
  6. 6. Histograms Made Easy<br />You can see the column only contains my 30 data points now. I copied my data and then used “Paste Special” to paste only the “Values”, then I cleared the data left over from the template’s original analysis.<br />Not to be used, posted, etc. without my expressed permission. B Heard<br />
  7. 7. Histograms Made Easy<br /><ul><li>Let’s say we want to sketch a histogram with nine classes. Let’s take a look at our range (Maximum value minus the Minimum value)
  8. 8. It’s 244-95 = 149 for the home run data
  9. 9. Let’s now divide 149 by 9 to get 149/9 = 16.5, we are going to round up to 17 for starters and see how that works out for us. You can always “tweak” this a little if needed.
  10. 10. Let’s now take a look at the template again.</li></ul>Not to be used, posted, etc. without my expressed permission. B Heard<br />
  11. 11. Keys to the Central Limit Theorem<br />Notice I chose 94 for my “Start” because it’s one below my minimum. I entered my “Interval Width” as 17 as described on the previous chart. I chose an “End” value of 246, one above my maximum.<br />Notice the Bin Labels are a little scrambled, don’t worry about that right now.<br />Not to be used, posted, etc. without my expressed permission. B Heard<br />
  12. 12. Histograms Made Easy<br />This is what we have right now. It is a good “sketch” of a histogram.<br />Let’s look at fixing the Bin Labels.<br />Not to be used, posted, etc. without my expressed permission. B Heard<br />
  13. 13. No Need to Worry!<br />Just grab the graph in bottom right hand corner and pull to make it larger. (YOU CAN’T DO THIS UNLESS YOU HAVE UNPROTECTED THE SHEET)<br />Histograms Made Easy<br />
  14. 14. Voila! It is beautiful, you can just right click, copy, and paste wherever you need to!<br />Histograms Made Easy<br />
  15. 15. Histograms Made Easy<br />Hopefully this will help you in creating Histograms.<br />Play around with the template, you can do some interesting things.<br />We would love to hear if it helps you!<br />Visit us on Facebook at www.facebook.com/statcave<br />Not to be used, posted, etc. without my expressed permission. B Heard<br />

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