joint frequency distributions capital credit union issue: analyze the credit card balances by gender...

Joint Frequency Distributions Capital Credit UnionJoint 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

• The file contains 300 observations. The last row is 301.

• Column 2 (B) contains the balances.

• Column 3 (C) contains the gender codes


1. Place the cursor in any data cell

\ • Select Insert• Select Pivot Table• Table/Range selected

automatically• Place on New

Worksheet


• Drag Gender to the “Drop Column Fields Here” box

• Drag Gender to the “Drop Data Items Here” box

• Drag “Credit Card Account Balance” to the “Drop Row Fields Here”


Yielding!

However we need to group the balance Information and change the Sum of Gender to Count of Gender


• Place the cursor in any Balance Cell

• RIGHT click and select Group


• Starting at: 90• Ending at: 1589• By: 150


• Right click Sum of Gender

• Select Value Field Setting to Open Value Field Setting dialog box

• In dialog box, select Count


Complete!

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 Pivot Table Instructions.

Joint Relative Frequencies Capital Credit Union

Joint Relative Frequencies-Capital Credit Union

• Right-mouse click anywhere in the values of the pivot table.

• Select Value Field Settings


Select the Show Values as tab

Scroll down and click % of total (2010: grand total)


Now displayed as percentages rather than values

** Do the rest of them by yourself **

Bar Charts Bach, Lombard, & Wilson

** Do the rest of them by yourself **

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


• Select data in columns B and C

• Select Insert• Select Column


Select 2-D paired columns


Which brings up…


To change the horizontal axis labels to Years:• Select Data• Select Edit


Select cells A2 through A8 to display years in the label

Bar Charts-Bach, Lombard, & Wilson (continued)



Objective: Use Excel to develop bar charts for the percent of males and females hired with MBA’s. Data File is Bach.xls


• Select the Graph

• Select “Select Data”


Select Edit

Select the data in Column A




Objective: Use Excel to develop a bar chart for the average starting salary of males and females hired with and without MBA’s. Data File is Bach.xls


• Select Columns G1 – J2

• Select Insert• Select Column


To add data labels to the top of the bars:• Select Layout Tab• Select Data Labels• Select Outside End

Delete the legend Series1

Line Charts- McGregor VineyardsLine Charts- McGregor 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 McGregor.xls

Line Charts-McGregor Vineyards

Open the Excel file called McGregor.xls

The file contains 20 weeks of historic data. The last row is 21


• Select The data in Column B

• Select Insert• Select Line• Select the 2-D Line with

Markers sample line chart


Need to:

• Change the title (Click title and replace with Sales Trend)

• Delete the legend Sales (dollars)(click the legend and press Delete)

• Add x-axis and y-axis titles

• Remove the gridlines


To add Axis Titles:• Select Layout Tab• Select Axis Titles• First Select Horizontal Axis

Title and then Click Title Below Axis – Replace with Week

• Go through same steps above and click Primary Vertical Axis Title and then click Rotated Title – Replace with Sales

To Change Gridlines:• Click Gridlines• Point to Primary Horizontal

Gridlines• Click None• Resize to fit in the range D1

through L11.


Repeat the process for Profit, changing titles as shown


Rebuild the line chart using both Sales and Profit, changing titles as shown and using Move Chart to move to another page.


To improve the scaling need a 2-axis chart• Click the Profit line on

the chart• On the Format tab,

select Format Selection

• Select Secondary Axis option button

Scatter Diagrams- Personal ComputersScatter 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

Scatter Diagrams- Personal Computers

Open the Excel file called Personal Computers.xls

The file contains data for 14 PC’s


• Select columns to be graphed (C and G)

• Select Insert• Select Scatter• Select Scatter with only

Markers


• Use Design tab to move to a new sheet

• Use Layout tab to add titles and remove grid lines

joint frequency distributions capital credit union issue: analyze the credit card balances by gender...

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