# Results for: “Mathematics”

23 eBooks

## Circles: GED Geometry |
Ace Academics | Ace Academics | ePub | ||||

## Addition and Subtraction: Whole Numbers: PSAT Arithmetic |
Ace Academics | Ace Academics | ePub | ||||

## Areas of Polygons: PSAT Geometry |
Ace Academics | Ace Academics | ePub | ||||

## Multiplication and Division: Decimals: SSAT-ISEE Arithmetic |
Ace Academics | Ace Academics | ePub | ||||

## qtc11-1 |
N.P.Bali; P.N.Gupta; Dr C.P.Gandhi | Laxmi Publications | |||||

11 F-Test and Analysis of Variance ANOVA 11.1. ANALYSIS OF VARIANCE We have studied t-test which is used to test the significance of the difference between two sample means. But, if the number of means is more than two, then t-test is not applicable. Hence, if we have a large number of means and we have to test the hypothesis that (1) Means are homogeneous or not (2) Means differ significantly or not (3) Independency of errors The techniques known as �Analysis of Variance� developed by �Fisher� is useful. 11.2. TECHNIQUES OF ANOVA (ANALYSIS OF VARIANCE) There are two types of techniques for the analysis of variance : (1) One way classification (2) Two way classification. We now discuss the above classification in details. 11.3. ONE WAY CLASSIFICATION Consider a set of N values of the variable x arranged into h rows and k columns so that N = hk. Assume the null hypothesis. H0 : µ1 = µ2 = µ3 = µ4 etc., i.e., there is no significant difference between the sample means H1 : µ1 ≠ µ2 ≠ µ3 ≠ µ4 etc., i.e., there is a significant difference between the sample means. See All Chapters |