1. Example 2-5 Histograms Capital Credit Union Issue: Analyze credit card balances for Capital Credit Union customers using a frequency distribution and histogram. Objective: Use Excel to develop a frequency distribution and histogram for credit card balances. Use ten class intervals. Data file is Capital.xls Excel Histogram Tutorial

2. Open the Excel file called Capital.xls File contains 300 observations - Last row is 301 - Column B contains the balances Example 2-5 Histograms Open File

3. Use Excel Max function to determine largest value Example 2-5 Histograms Max Function

4. Use Excel Min function to determine smallest value Example 2-5 Histograms Min Function

5. Compute Class Width Round Up to $150.00 $90 to less than $240 $240 to less than $390 Class Intervals $390 to less than $540 etc…. Example 2-5 Histograms Class Width

6. Construct the Bins (the upper limit of each class. Example 2-5 Histograms Bins

7. Select Tools and Data Analysis Example 2-5 Histograms Tools, Data Analysis

8. Select the Histogram option Example 2-5 Histograms Histogram Option

9. Complete the Histogram Wizard - Note, check Chart Output. Placing output on a new worksheet is optional. Example 2-5 Histograms Histogram Wizard

10. This is Excel’s Default Output. You need to make some modifications to make it acceptable for most applications. Example 2-5 Histograms Default Output

11. Select the graph by clicking it. Note, the points on the graph boarder indicate it has been selected. Enlarge Graph by dragging from lower right corner down and to the right. Example 2-5 Histograms Select Histogram

12. Histograms should have no gaps between the bars! Select the bars on the graph by clicking on any bar - then right click. Example 2-5 Histograms Remove Gaps 1

13. Click on Selected Object Example 2-5 Histograms Remove Gaps 2

14. Click on Options tab Example 2-5 Histograms Remove Gaps 3

15. Set Gap Width to 0 to close the gaps between the bars - click OK Example 2-5 Histograms Remove Gaps 4

16. The legend is not needed. Select it and press the delete key Example 2-5 Histograms Delete Legend

17. Label the Graph Variable – Select the “Bin” Label and type desired label. Press the Enter key. Example 2-5 Histograms Label x-axis

18. 1. Enter Correct Group Labels 2. Select the horizontal axis line 3. Select Format Axis Example 2-5 Histograms Fine Tune 1

19. Select Font and make desired changes. Example 2-5 Histograms Fine Tune 2

20. Select Alignment and make desired changes. Example 2-5 Histograms Fine Tune 3

21. Select the “More” row and press the Delete key Example 2-5 Histograms Fine Tune 4

22. You can make other modifications to the histogram – color, labels, size, etc. Example 2-5 Histograms Fine Tune 5