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Excel
STATISTICAL
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ANOVA Basic Definition
for the Graduate Student and Business Manager

Clear and Complete - WITH LOTS OF SOLVED PROBLEMS

ANOVA Basic Definition

ANOVA, Analysis of Variance, is a large group of techniques that analyzes observed variance and break it down into components. The different components are the sources of variance. ANOVA is generally used to determine to determine if two or more means are equal. ANOVA performs analysis on the variance of two or more data sets to determine if the data sets have the same means. ANOVA calculates whether or not two or more means are within a certain percent chance (confidence level) of being the same based upon the actual and expected levels of variance within each data set.

ANOVA is normally used to test three or more means. If a variance test is being performed on only two means, the desired test would be the Students two-sample t- test. Performing the Students two-sample t-test multiple times on more than two means could result in a much higher probability of type 1 error (rejecting the null hypothesis when it is actually true - that is - assuming that the means are different when they are not). For this reason, a single ANOVA test is preferable when comparing more than two means. If only two means are being analyzed, the F test performed by ANOVA is equivalent to the t-test.

 

 

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Blog Entries
Using Logistic Regression in Excel To Predict If a Prospect Will Buy
Taguchi Testing - What Is It and Is It a Good For Landing Page Optimization?
How To Use the Chi-Square Independence Test in Excel to Figure Out What Makes Your Customers Buy More
How To Solve ALL Hypothesis Tests in Only 4 Steps
Statistical Mistakes You Don't Want To Make
A Quick Normality Test Easily Done in Excel
The 7 Most Common Correctable Causes of Sample Data Appearing Non-Normal
How To Use the t Test in Excel To Find Out If Your New Marketing Is Working
Using the Excel t Test To Find Out What Your Best Sales Days Are
Nonparametric Tests - Completed Examples in Excel
Nonparametric Tests - How To Do the 4 Most Important in Excel
Nonparametric Tests - When the Marketer Should Use Them
Using All 3 Types of ANOVA in Excel to Improve Your PPC Marketing
Comparing Doing ANOVA in Excel with Doing It By Hand
How To Use the Chi-Square Variance Test to Find Out If Your Customers Are Becoming More or Less Focused In Their Spending
Using ANOVA in Excel to Increase Click-Through Rate
The Two Crucial Steps to Excel Regression That Most People Skip
How To Quickly Read the Output of Excel Regression
Work-Arounds for Excel 2003 and Excel 2007s Biggest Statistical Omissions
How To Build a Better Split-Tester in Excel Than the Google Website Optimizer
How To Use Dummy Variable Regression in Excel to Perform Conjoint Analysis
The Chi-Square Goodness-of-Fit Test - Excel's Easiest Normality Test
The Mann-Whitney U Test Done in Excel
The Kruskal-Wallis Test Done in Excel
The Spearman Correlation Coefficient Test Done in Excel
The Sign Test (Nonparametric) Done in Excel
The Wilcoxon Rank Sum Test Done in Excel
The Wilcoxon Signed-Rank Test for Small Samples Done in Excel
The Wilcoxon Signed-Rank Test for Large Samples Done in Excel
Excel's Most Basic Forecasting Tool - The Simple Moving Average
The Weighted Moving Average - A Basic and Accurate Excel Forecasting Tool
Excel Forecasting Tool #3 - Exponential Smoothing
Normal Distribution's 4 Most Important Excel Functions
Using the Normal Distribution To Find Your Sales Limits
Using the Hypothesis Test in Excel To Find Out If Your Advertising Worked
Using the Hypothesis Test in Excel To Find Out If Your Delivery Time Worsened
Using the Hypothesis Test in Excel To Test Your Headlines
Creating a Confidence Interval in Excel To find Your Customer Preferences
Creating a Confidence Interval in Excel To Find Your Real Daily Sales
Using the Normal Distribution To Find Your Range of Daily Sales
SPC Control Charts in Excel - Done Properly
Excel Model Building - Experts vs. Non-experts
Using the Excel Solver To Optimize Your Internet Marketing Budget
Is SPC Limited By The Central Limit Theorem?
Top 10 SEO Excel Functions - You'll Like These!
How To Use the Excel Solver to Find Your Sales Curve
How To Use If-Then-Else In Excel To Remove Matches From 2 Lists
How To Use VLOOKUP In Excel To Find Matches From 2 Lists In 2 Steps
Pivot Tables - How To Set Up Pivot Tables Correctly Every Time
Pivot Tables - One Easy Step That Will Double the Effectiveness of All of Your Pivot Tables!
VLOOKUP - Just Like Looking Up a Number In The Telephone Book
VLOOKUP - Looking Up a Quantity Discount in a Distant Excel Spreadsheet With VLOOKUP




Statistical Training Videos
How To Use Logistic Regression in Excel To Predict If Your Prospect Will Buy
How To Use the Chi-Square Independence Test in Excel to Find Out What Makes Your Customer Make Bigger Orders
How to Graph the Normal Distribution's Probability Density Function in Excel
How To Use Dummy Variable Regression in Excel to Perform Conjoint Analysis
How To Use All 3 Built-In Types of ANOVA in Excel to Improve PPC Marketing
How To Use the Chi-Square Variance Test in Excel to Find Out If Your Customers Are More Focused In Their Spending
How To Create a Histogram and Pareto Chart in Excel
How To Improve a Twitter Follower Acquisition Program with a Histogram in Excel
How To Use SocialOomph - The Most Versatile and Popular Tweet Automation Tool
How To Graph the Normal Distribution's Cumulative Distribution Function in Excel
How to Build a Better Split-Tester in Excel Than the Google Website Optimizer
How To Do the 4 Steps to Regression in Excel - Including the 2 Crucial Steps That Are Almost Always Ignored
Excel Regression Output - How to Quickly Read and Understand It
How To Use ANOVA in Excel to Increase Click-Through Rate in a Pay-Per-Click Campaign
How To Do ANOVA in Excel and also by Hand - Single-Factor ANOVA
Work-Arounds for Excel 2003 and Excel 2007's Biggest Statistical Omissions
How To Graph the Students t Distributions' Probability Density Function in Excel
How To Graph the Chi-Square Distribution's Probability Density Function in Excel
How To Graph the Weibull Distribution's PDF and CDF - in Excel
How To Add Followers To Your Twitter Account Faster Than You Thought Possible
How To Solve Problems with the Weibull Distribution in Excel
How To Solve Problems with the Gamma Distribution in Excel