Guide to Using Excel For Basic Statistical Applications To Accompany Business Statistics: A Decision Making Approach, 6th Ed. Chapter 2: Graphs, Charts and Tables - Describing Your Data By Groebner, Shannon, Fry, & Smith Prentice-Hall Publishing Company Copyright, 2005 Chapter 2 Excel Examples Frequency Distributions Athletic Shoe Survey HistogramsCapital Credit Union Joint Frequency DistributionsCapital Credit Union Joint Relative FrequenciesCapital Credit Union More Examples Chapter 2 Excel Examples (continued) Bar ChartsBach, Lombard & Wilson Line ChartsMcGregor Vineyards Scatter DiagramsPersonal Computers Frequency Distributions Athletic Shoe Survey Issue: Analyze the data from a survey of 100 college students regarding the number of Nike shoes they own. Objective: Use Excel to develop a frequency distribution for the number of Nike shoes owned by college students. Data File is SportShoes.xls Frequency Distributions-Athletic Shoe Survey Open the Excel file called SportShoes.xls File contains 100 observations - Last row is 102 - Column E contains the Number of Nike Shoes Owned Frequency Distributions-Athletic Shoe Survey Enter Possible Number of Shoes Owned Frequency Distributions-Athletic Shoe Survey Highlight range of cells to hold frequency counts Frequency Distributions-Athletic Shoe Survey Click on fX (function wizard) Select Statistical option Select Frequency function Frequency Distributions-Athletic Shoe Survey Enter the cells containing the data Enter the cells containing the possible values for the variable Last Step -- Press Ctrl -Shift - Enter Don’t Press OK Frequency Distributions-Athletic Shoe Survey Resulting Frequency Counts 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 Histograms-Capital Credit Union Open the Excel file called Capital.xls File contains 300 observations - Last row is 301 - Column B contains the balances Histograms-Capital Credit Union Use Excel Max function to determine largest value Histograms-Capital Credit Union Use Excel Min function to determine largest value Histograms-Capital Credit Union Compute Class Width 1493.00 99.00 w 139.4 10 Round Up to $150.00 $90 to less than $240 $240 to less than $390 $390 to less than $540 etc…. Class Intervals Histograms-Capital Credit Union Construct the Bins (the upper limit of each class. Histograms-Capital Credit Union Select Tools and Data Analysis Histograms-Capital Credit Union Select the Histogram option Histograms-Capital Credit Union Complete the Histogram Wizard - Note, check Chart Output. Placing output on a new worksheet is optional. Histograms-Capital Credit Union This is Excel’s Default Output. You need to make some modifications to make it acceptable for most applications. Histograms-Capital Credit Union 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. Histograms-Capital Credit Union Histograms should have no gaps between the bars! Select the bars on the graph by clicking on any bar - then right click. Histograms-Capital Credit Union Click on Selected Object Histograms-Capital Credit Union Click on Options tab Histograms-Capital Credit Union Set Gap Width to 0 to close the gaps between the bars - click OK Histograms-Capital Credit Union The legend is not needed. Select it and press the delete key Histograms-Capital Credit Union Label the Graph Variable – Select the “Bin” Label and type desired label. Press the Enter key. Histograms-Capital Credit Union 2. Select the horizontal axis line 1. Enter Correct Group Labels 3. Select Format Axis Histograms-Capital Credit Union Select Font and make desired changes. Histograms-Capital Credit Union Select Alignment and make desired changes. Histograms-Capital Credit Union Select the “More” row and press the Delete key Histograms-Capital Credit Union You can make other modifications to the histogram – color, labels, size, etc.