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Project 6Using The Analysis ToolPak To
Analyze Sales Transactions
Jason C. H. Chen, Ph.D.Professor of
Management Information Systems
School of Business Administration
Gonzaga UniversitySpokane, WA 99258, USA
Chen@gonzaga.edu
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Excel Skills Conduct an ANOVA comparing three groups Conduct an ANOVA comparing two groups Create a chart using Microsoft Map Import ASCII data Set up a data set Use the IF function to recode values
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Key Terms Alpha
The probability of making a type I error (rejecting the null hypothesis when it is actually true).
Analysis of Variance (ANOVA) A statistical procedure to test the hypothesis that
means from two or more samples are equal. ANOVA table
A table used to display the results of an ANOVA procedure.
Case One row of data in a data set that you will analyze
using Excel's statistical procedures in the Analysis ToolPak.
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Key Terms Coding
A method of assigning a value to a variable to be used in statistical analysis. For example, you may need to recode the nominal data for "male" and "female" as 0 and 1 respectively.
Critical value The value from a sampling distribution against which
you compare a computed statistic to determine whether to accept or reject the null hypothesis.
Data Facts and figures that have not been interpreted in a
specific context.
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Key Terms Data set
Data you analyze using one or more statistical procedures is stored in a data set.
Descriptive statistics Indices and numbers that summarize a data
set. Dichotomous variable
A variable that can take one of two values. The sex of a survey respondent is an example of a dichotomous variable.
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Key Terms F Distribution
A theoretical sampling distribution of F values. The ANOVA procedure uses the F distribution.
Field Data comprised of individual elements such as
last name and first name, where a consistent set of identifiers define one or more records.
Information Data that is meaningful within a specific
context.
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Key Terms Recoded values
Nominal data converted to numeric data for statistical analysis.
Record A collection of fields defining one instance
of an entity in a database or list. Statistically significant
Statistical significance
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Key Terms Test statistic
The value returned from a statistical procedure such as ANOVA.
Variable Something that exists in more than one
amount or more than one form, or can assume a range of values at any time.
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Objectives Import ASCII data into Microsoft Excel Add additional formulas to the
worksheet Use the IF logical function to recode the
Gender variable Create two data sets containing the
values to be tested
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Objectives Calculate descriptive statistics using the
Data Analysis tools Conduct an Analysis Of Variance
comparing means for two groups Conduct an Analysis Of Variance
comparing means for three groups Display data on a map using Microsoft
Map
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Running Case Use Excel to conduct more
sophisticated data analysis. Management is interested in
monitoring the shopping habits of males and females, and also determining how customer
location impacts product selection.
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Project Challenge Mr. Traylor wants to know two things
about e shoppers: (1) Whether there are statistically
significant differences in purchasing trends between women and men.
(2) If product selection varies depending upon customer location.
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Fields of the Data File
Data file: SalesData.xls
Data file: Orders.xls
new field
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Task 4
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By Region ANOVA
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Two HypothesisIf obtained F value does not exceed
critical F value THEN Null hypothesis
there is no difference between men and women
ELSE Alternate hypothesis
There is a statistically significant difference in their shopping habits
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Task 8: Conduct the ANOVA for the By Gender data set
If you can’t find the add-in of Data Analysis from the Tool drop-down menu
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Therefore, the null hypothesis is true that - there is no statistically significant difference in purchasing decisions between women and men based on this sample.
The obtained F value of 0.01 if cell E 11 does not exceed the critical F value of 4.13 in cell G11
With alpha equal to 0.05, the researcher (or marketing rep.) has 95% confidence that the result are true.
Does Gender affect shopping habits?
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Case 1: with alpha equal to 0.05
Case 1: with alpha equal to 0.10
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Task 9: Conduct the ANOVA for the By Region data set
T-test Comparing means for two groups only
ANOVA Comparing means for three or more groups
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The obtained F value of 0.809 if cell E 12 does not exceed the critical F value of 3.28 in cell G12.
Therefore the null hypothesis is retained; there are no significant difference between the purchasing decisions of customers in the East, Midwest, and West.
Does customer locations affect products selection?
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Solution – By Gender ANOVA
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How to add the Map button?
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Task 10: Display Sales Data on a Map using Microsoft Map
1. Click the SalesData worksheet tab to make it the active sheet.
2. Hide all worksheet columns except columns H,I,J, and Q
3. Highlight the range H1:H374. Hold down [Ctrl] and select
the range Q1:Q37
5. Click the Map button on the Standard Toolbar (if it is not shown, see the instruction to add it)
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Task 10: Display Sales Data on a Map using M/S Map (cont.)
6. Drag an area on the worksheet indicating the size and location of the map you want to create.
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7. The Multiple Map Available dialog should appear. Select United States in North America.
8. Click OK. Excel will create the map, and the Microsoft Map Control will appear.
9. Click the Close button on the Map control to close it.
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10. Click an area outside the chart. The map is shown.11. Click File, Save As, and save the workbook as Sales Analysis W-
Map.xls
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Final Map generated from Sales Data
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Microsoft Map
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How to re-display the Map Control?
1. On step 10, just click an area outside the chart. Do Not close the Map Control.
2. Select the Map by clicking an area inside the chart, then right click.3. A pop-up menu is shown.4. Select Microsoft Map Object, the click on Edit.5. The Map Control menu is re-displayed.
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Exploring Other Features from Map Control: Count of Sate
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Result of Count of State (1)
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Result of Count of State (2)
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Exploring Other Features from Map Control: Total
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Result of Total (1)
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Result of Total (2)
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Project 6
Using The Analysis ToolPak To Analyze Sales Transactions
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