Test to determine if alcohol and marital status are independent. If they are not independent, then be sure to explain where the dependencies occur.
Correlation
Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.
Linear Correlation
A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.
Regression Analysis
Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.
A study was undertaken to determine the relationship between alcohol use and marital status. Below is the result of the responses of 500 people, 311 married and 189 single.
Alcohol Use
Marital Status None Moderate Extensive Totals
Married 104 175 32 311
Single 46 75 68 189
Totals 150 250 100 500
- Test to determine if alcohol and marital status are independent.
- If they are not independent, then be sure to explain where the dependencies occur.
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