Ask Experts Questions for FREE Help !
Ask
    spark_man's Avatar
    spark_man Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jun 5, 2009, 11:42 AM
    ANOVA vs 1 and 2 sample tests?
    What is Analysis of Variance (ANOVA) and how does it compare to one- and two-sample tests?
    galactus's Avatar
    galactus Posts: 2,271, Reputation: 282
    Ultra Member
    		  
    #2

    Jun 6, 2009, 11:25 AM
    ANOVA stands for 'analysis of variations'. A one-way ANOVA is a hypothesis testing

    technique used to compare means from 3 or more populations.

    A two-way ANOVA test is when you want to test the effect of two independent

    variables, or factors, on one dependent variable. The conditions for a two way ANOVA are

    the same as in a one-way with the additional condition that all samples are the same size.

    A two-way ANOVA has 3 null hypotheses. Two for each main effect and one for the

    interaction effect. The main effect is the effect of one independent variable on the

    dependent variable and the interaction effect is the effect of both independent

    variables on the dependent variable.

    Read all about it in a beginning stats text or Google it. Most calculators do ANOVA tests.

    So, unless for some silly reason you are made to, do not struggle through the tedious

    formulas. Excel does them if you do not have a calculator that does.
Not your question? Ask your question View similar questions
 

Question Tools Search this Question
Search this Question:

Advanced Search

Add your answer here.


Check out some similar questions!

Faint Positive tests and then negative tests [ 4 Answers ]

Here is my situation. First of all, you should know that I'm on Metformin because I have very irregular periods and am borderline PCOS. Now for the tests. The first day of my last period was Oct 21st. This is not uncommon for me to be this late, but I took a test anyway to see if I was...

Formula for F in a two-way ANOVA [ 2 Answers ]

I have an ANOVA table and need to find the value for F. Does anyone know what that is?

Sample mean [ 1 Answers ]

If 40 samples, each of size n=21, were selected from a population of 22,493, we would expect the mean of the sample means and the population mean to be close but not exactly equal. Is this statement true or false? I said it was true, is that correct?

Blood tests or urine tests? [ 2 Answers ]

I usually have irregular periods. They sometimes come every month, and sometimes a/f doesn't come but every other month. I have never gone three months without a/f. I took 4 pregnant. Tests. All urine home pregnancy tests. They all came out negative. I am wondering if I take a blood test, can...

View more questions Search