1. Guide to Using Excel For Basic Statistical Applications
To Accompany
Business Statistics: A Decision Making Approach, 7th Ed.
Chapter 12:
Analysis of Variance By
Groebner, Shannon, Fry, & Smith
Prentice-Hall Publishing Company
Copyright, 2008

2. Chapter 12 Excel Examples
Analysis of Variance -
Hydronics Corporation
Digitron Inc.
Randomized Complete Block Analysis of Variance
Citizens State Bank
Two Factor Analysis of Variance with Replications - Fly High Airlines

3. Analysis of Variance - Hydronics Corporation
Issue: The company wants to compare two weight loss supplements with a placebo.
Objective: Use Excel to help test a hypothesis about the mean weight loss associated with the three groups.
Data file is Hydronics.xls

4. Analysis of Variance – Hydronics Corp.
Open the file Hydronics.xls

5. Analysis of Variance – Hydronics Corp.
Select the Data tab
Select Data Analysis
Select ANOVA: Single Factor

6. Analysis of Variance – Hydronics Corp.
Input range: b1:d92
Grouped by Columns
Labels in First Row
Alpha: 0.05 OK

7. Analysis of Variance – Hydronics Corp.
The Excel output shows we should reject the hypothesis of equal variances.
The p-value (which is very small) is less than alpha and F is greater than F critical.

8. Analysis of Variance - Digitron, Inc.
Issue: The company wants to compare the stopping distance of four brake systems.
Objective: Use Excel to help test a hypothesis about the mean stopping distance associated with the four brake systems.
Data file is Digitron .xls

9. Analysis of Variance – Digitron Inc.
Open the file Digitron.xls

10. Analysis of Variance – Digitron Inc.
Select the Data tab
Select Data Analysis
Select ANOVA: Single Factor OK

11. Analysis of Variance – Digitron Inc.
Set Input range to B1:E11
Grouped by Columns
Labels in First Row
Alpha = 0.05
New Worksheet Ply ANOVA OK

12. Analysis of Variance – Digitron Inc.
The Excel output shows we should reject the hypothesis of equal variances.
The p-value is less than alpha of 0.05 and F is greater than F critical.

13. Randomized Block ANOVA – Citizens State Bank
Issue: Bank managers wish to test the hypothesis that there is no difference in the average house appraisal by three different appraising companies.
Objective: Use Excel to test the hypothesis there is no difference in average appraisal value.
Data file is Citizens.xls

14. Randomized Block ANOVA – Citizens State Bank
Open the file Citizens.xls
Selected the Data tab
Select Data Analysis
Select ANOVA: Two-Factor Without replication OK

15. Randomized Block ANOVA – Citizens State Bank
Input Range = A1:D6
Select Labels
Alpha = 0.05
New Worksheet Ply: ANOVA OK
Input Range = A1:D6
Select Labels
Alpha = 0.05
New Worksheet Ply: ANOVA OK

16. Randomized Block ANOVA – Citizens State Bank
The F and p-values indicate that both blocking and main effects are significant.
Blocking Test
Main Test
Within

17. Two Factor ANOVA With Replications - Fly High Airlines
Issue: The airline is interested in determining the effect of redemption offers on the number of miles that would be redeemed by age group.
Objective: Use Excel to test the hypothesis there is no difference in average redemption rate by age or redemption offer.
Data file is Fly High.xls

18. Two Factor ANOVA With Replications – Fly High Airlines
Open the file FlyHigh.xls
Select the Data Tab
Select Data Analysis
Select ANOVA: Two-Factor With Replication OK

19. Two Factor ANOVA With Replications – Fly High Airlines
Input Range = A1:D17
Rows per sample = 4
Alpha = 0.05
New Worksheet Ply: ANOVA OK

20. Two Factor ANOVA With Replications – Fly High Airlines
This is the last part of the Excel output.
Note the low F values and that all p-values are larger than alpha.