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Correlation Analysis

January 10th, 2010 | 1,286 views | No Comments

Correlation is a measure of relationship between two variables. The two variables must be numeric or scale. So basically correlation is applied on the quantitative variables.
Correlation Coefficient
Correlation Coefficient gives the mathematical value for measuring the strength of the linear relationship between two variables. It ranges from -1 to +1.
• +1 representing absolute positive linear relationship [...]

ANOVA Analysis

January 10th, 2010 | 765 views | No Comments

Assumptions
•  The dependent variable should be interval or ratio.
•  The population in which samples are drawn should be normally distributed.
•  Sample cases should be independent of each other.
•  Variance between the groups should be approximately equal.
One-Way ANOVA (It uses F-Statistic)
One way ANOVA is a statistical technique that is used to compare the means of more [...]