Guide to Using Excel 2003 For Basic Statistical

Guide to Using Excel 2003 For Basic Statistical Applications To Accompany Business Statistics: A Decision Making Approach, 7 th Ed. Chapter 2: Graphs, Charts and Tables - Describing Your Data By Groebner, Shannon, Fry, & Smith Prentice-Hall Publishing Company Copyright, 2008

Chapter 2 Excel 2003 Examples ® Frequency Distributions Athletic Shoe Survey ® Histograms. Capital Credit Union ® Joint Frequency Distributions. Capital Credit Union ® Joint Relative Frequencies. Capital Credit Union More Examples

Chapter 2 Excel Examples (continued) ® Bar Charts. Bach, Lombard & Wilson ® Line Charts. Mc. Gregor Vineyards ® Scatter Diagrams. Personal 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 Sport. Shoes. xls

Frequency Distributions-Athletic Shoe Survey Open the Excel file called Sport. Shoes. xls File contains 100 observations - Last row is 101 - 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 (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 Round Up to $150. 00 $90 to less than $240 to less than $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 Label the Graph Variable – Select the “Bin” Label and type desired label. Press the Enter key.

Histograms-Capital Credit Union The legend is not needed. Select it and press the delete 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.

Joint Frequency Distributions Capital Credit Union Issue: Analyze the credit card balances by gender of the card holder. Objective: Use Excel to develop a joint frequency distribution for the credit card balances by gender. Data File is Capital. xls

Joint Frequency Distributions-Capital Credit Union Open the Excel file called Capital. xls File contains 300 observations - Last row is 301 - Column B contains the balances – Column C contains the gender codes

Joint Frequency Distributions-Capital Credit Union 2. Select Data and Pivot Table and Pivot Chart Report 1. Place cursor in any data cell.

Joint Frequency Distributions-Capital Credit Union Click on Next

Joint Frequency Distributions-Capital Credit Union Make sure that the data range is correct and then click on Next

Joint Frequency Distributions-Capital Credit Union We recommend putting the pivot table on a new worksheet Click Options

Joint Frequency Distributions-Capital Credit Union Select desired Options

Joint Frequency Distributions-Capital Credit Union Click Layout

Joint Frequency Distributions-Capital Credit Union Drag Balance to row and Gender to column. To get frequency count, drag any variable to the Data area.

Joint Frequency Distributions-Capital Credit Union We want a frequency count, not a sum. Double click on column.

Joint Frequency Distributions-Capital Credit Union Select Count Click OK

Joint Frequency Distributions-Capital Credit Union Click OK

Joint Frequency Distributions-Capital Credit Union Click Finish

Joint Frequency Distributions-Capital Credit Union Joint Frequency Distribution. However, we need to group the balance variable to gain information.

Joint Frequency Distributions-Capital Credit Union Place cursor in any balance cell. Then right click.

Joint Frequency Distributions-Capital Credit Union Select Group and Outline – then select Group

Joint Frequency Distributions-Capital Credit Union By: is the group width. Change to 150 – click on OK

Joint Frequency Distributions-Capital Credit Union Completed Joint Frequency Distribution

Joint Relative Frequencies Capital Credit Union Objective: Use Excel to develop a joint relative frequency distribution for the credit card balances by gender. Data File is Capital. xls Note: See Previous Example for Beginning Pivot Table Instructions.

Joint Relative Frequencies-Capital Credit Union Place Cursor in any cell in the table – Right Click – select Pivot Table Wizard.

Joint Relative Frequencies-Capital Credit Union Select Layout

Joint Relative Frequencies-Capital Credit Union Double Click on Data field

Joint Relative Frequencies-Capital Credit Union Click on Options

Joint Relative Frequencies-Capital Credit Union Click of % of Total in Show data as area – then OK

Joint Relative Frequencies-Capital Credit Union Click OK

Joint Relative Frequencies-Capital Credit Union Click Finish

Joint Relative Frequencies-Capital Credit Union Completed Joint Relative Frequency Distribution

Bar Charts Bach, Lombard, & Wilson Issue: An electronics company is being sued on the grounds that female new hires are paid less than male new hires. The law firm needs to analyze salary data to prepare the case. Objective: Use Excel to develop bar charts for the starting salary data for males and females. Data File is Bach. xls

Bar Charts-Bach, Lombard & Wilson Open the Excel file called Bach. xls

Bar Charts-Bach, Lombard & Wilson Select Chart Wizard. Select Column Option Select the data in Columns A-C.

Bar Charts-Bach, Lombard & Wilson Select Series tab Remove Years Variable from Graph Define Xaxis range (Years)

Bar Charts-Bach, Lombard & Wilson Series 2 = Males Enter labels for Groups Series 3 = Females

Bar Charts-Bach, Lombard & Wilson Enter Chart Titles and Make other desired format changes

Bar Charts-Bach, Lombard & Wilson Completed Bar Chart – Males have higher starting salaries each year.

Bar Charts. Bach, Lombard, & Wilson (continued) Issue: An electronics company is being sued on the grounds that female new hires are paid less than male new hires. The law firm needs to analyze salary data to prepare the case. Objective: Use Excel to develop bar chart for the average starting salary of males and females hired with and without MBA’s. Data File is Bach. xls

Bar Charts-Bach, Lombard & Wilson Click on Chart Wizard. Select Bar option Select Data from Columns G - J

Bar Charts-Bach, Lombard & Wilson Enter Chart Titles and Make other desired format changes

Bar Charts-Bach, Lombard & Wilson To Modify Colors, Select the bars, Right Click – Choose Selected Object, then Click Options, Select Vary Colors by Point

Bar Charts-Bach, Lombard & Wilson To Show the data values on the bars, select Data Labels – click Show value.

Bar Charts-Bach, Lombard & Wilson Completed Bar Chart – Females with MBA’s paid higher than males on Average

Line Charts. Mc. Gregor Vineyards Issue: Analyze the sales and profits data over time. Objective: Use Excel to develop line charts for weekly sales and profits. Data File is Mc. Gregor. xls

Line Charts-Mc. Gregor Vineyards Open the Excel file called Mc. Gregor. xls File contains 20 weeks of historical data - last row is 21

Line Charts-Mc. Gregor Vineyards Click on Chart Wizard Highlight the variable (Sales) to graphed.

Line Charts-Mc. Gregor Vineyards Select Line chart type and desired sub-type – then click on Next

Line Charts-Mc. Gregor Vineyards Click on Series Tab – Enter data range containing the X-axis labels – then Next

Line Charts-Mc. Gregor Vineyards Add Titles –remove legend, etc.

Line Charts-Mc. Gregor Vineyards Determine location for graph.

Line Charts-Mc. Gregor Vineyards Optionally, to remove/change background color, select the graph – right click – select Format Plot Area

Line Charts-Mc. Gregor Vineyards To remove background, set Boarder and Area to None

Line Charts-Mc. Gregor Vineyards Finished Line Chart for Sales – Now repeat the process for the Profit Variable.

Line Charts-Mc. Gregor Vineyards Completed - Two individual line graphs. Next, graph both variables on the one line graph

Line Charts-Mc. Gregor Vineyards Highlight both variables – click on the Chart Wizard

Line Charts-Mc. Gregor Vineyards Select Line chart type and desired sub-type – then click on Next

Line Charts-Mc. Gregor Vineyards Click on Series Tab – Enter data range containing the X-axis labels – then Next

Line Charts-Mc. Gregor Vineyards Add Titles –remove gridlines, etc.

Line Charts-Mc. Gregor Vineyards Determine location for graph.

Line Charts-Mc. Gregor Vineyards Completed Line chart with two variables graphed - Notice the scale problem. We need to develop a line chart with two vertical scales

Line Charts-Mc. Gregor Vineyards Select the chart – right click – select Chart Type

Line Charts-Mc. Gregor Vineyards Click on Custom Types – then select Lines on 2 Axis – click OK

Line Charts-Mc. Gregor Vineyards Completed Line graph – Need to add labels

Line Charts-Mc. Gregor Vineyards Select entire chart – right click – select Chart Options

Line Charts-Mc. Gregor Vineyards Add Titles

Line Charts-Mc. Gregor Vineyards Completed Line Chart with Two Variables and Two Axes.

Scatter Diagrams. Personal Computers Issue: Analyze the relationship between PC sales price and the processing speed of the PC Objective: Use Excel to develop a scatter diagram for PC price and speed. Data File is Personal Computers. xls