GB513: Business Analytics

GB513: Business Analytics

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Unit 1: Assignment In this Assignment, you will be assessed based on the following outcome:

GB513-1: Illustrate business situations through graphs and tables.

This Assignment requires you to use Excel to answer the questions and create the charts as specified

in the file below. However, when presenting reports in business, you will find that most managers will

prefer to read Word documents or PowerPoint slides rather than go through Excel sheets. Being able

to move your work from Excel to Word is a valuable skill. For this Assignment, prepare a report by

copying all your charts and comments to a Word document and submit that Word file as your

Assignment. Clearly label all questions and charts as well as your answers. Make sure to review your

grading Rubric.

Using Data Analysis in Excel

Before any data analysis can be performed using Excel, the Data Analysis Tool must first be installed

on your computer. This will help you to successfully follow this tutorial.

Once the tool is installed, you can input data to create descriptive statistics. Follow the steps in the

video tutorial and try to get the correct result.

Question 1

According to T-100 Domestic Market, the top seven airlines in the United States by domestic

boarding in a recent year were Southwest Airlines Co. with 81.1 million, Delta Air Lines Inc. with 79.4

million, American Airlines, Inc. with 72.6 million, United Airlines, Inc. with 56.3 million, Northwest

Airlines Corp. with 43.3 million, US Airways with 37.8 million, and Continental Airlines with 31.5

million. Using Excel, construct a pie chart and a bar graph to depict this information.

Question 2

The U.S. Department of the Interior releases figures on mineral production. The following are the 15

leading states in nonfuel mineral production in the United States in 2008.

State Value ($billions)

Arizona 8.95

Nevada 6.48

Florida 4.2

Utah 4.17

California 4

Texas 3.8

Minnesota 3.72

Alaska 2.98

Missouri 2.58

Colorado 2.45

GB513: Business Analytics

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Michigan 2.96

Wyoming 2.37

Georgia 2.05

New Mexico 1.81

Pennsylvania 1.68

a) Using the appropriate tool in the data analysis toolpak in Excel, calculate the descriptive statistics. Include the summary statistics table in your report.

b) Briefly define the meaning of each of the metrics in the summary report you get.

c) Comment on all of the figures in the report. What do you learn from these metrics? What are they telling you about this data set? Is it symmetrical, flat, or skewed? Does it have outliers?

Question 3

Suppose Procter & Gamble sells 20 million bars of soap per week, but the demand is not constant

and production management would like to get a better handle on how sales are distributed over the

year. Let the following sales figures given in units of million bars represent the sales of bars per week

over 1-year (in no particular order).

a) Construct a histogram chart to represent the data using the appropriate tool from the data

analysis tool pack. Make sure to specify your own bin ranges otherwise Excel will automatically

pick them for you and you will have very strange bin ranges with confusing decimal points.

Make a list of numbers in multiples of 5, starting from 10 up to 40; then, show where the bin

numbers are in the histogram dialog box.

b) Creating a chart is not useful in and of itself unless it is properly interpreted. Write a brief

analysis of the graph. What do you see in the graph that might be helpful to the production and

sales people?

17.1 14.3 17 25.2

14.4 12.2 11.9 26.3

15.4 10.9 12.8 13.5

17.4 21.5 39.8 30.6

15 20.4 20.7 25.2

13.8 20.3 21.3 26.2

20.6 13.8 22.5 26.9

18.4 23.6 21.4 32.8

20 19.1 23.4 26.3

20.9 20.4 23.1 26.6

11.1 15.4 14.8 24.3

12.5 20.3 21.4 26.2

14.7 24.4 24 23.8

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Directions for submitting your Assignment

Submit your Word document to the Dropbox.

Unit 1 Assignment

Criteria

Points

Possible

Points

Earned

Question 1: Correct pie chart. 6

Question 1: Correct bar chart. 6

Question 2a: Correct descriptive output. 6

Question 2b: Explanation of each metric in the summary

statistics for Question 2. 6

Question 2c: Appropriate analysis of the resulting figures

in the report based on the data set for Question 2. 8

Question 3a: Correct histogram. 8

Question 3b: Analysis of the graph that would be helpful

to the production and sales people. 6

Proper report formatting submitted as a Word file. 4

Total 50


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