Author: Kanda Data
How to Detect Multicollinearity in Multiple Linear Regression Equations Using the OLS Method
Multicollinearity testing is one of the assumptions in the least squares method of multiple linear regression. This test is conducted to determine whether there is a strong correlation between independent variables.
Definition and Purpose of Determining Residual Values in Linear Regression Analysis
In linear regression analysis, residual values play a crucial role. The residual value is the difference between the actual and predicted Y values. The actual Y value can be obtained from observations or samples of the dependent variable.
How to Interpret Dummy Variables in Ordinary Least Squares Linear Regression Analysis
Dummy variables, which have non-parametric measurement scales, can be used in specifying linear regression equations. The linear regression equation I’m referring to here is the ordinary least squares (OLS) method. As we already know, most variables are measured on interval and ratio scales in ordinary least squares linear regression equations.
Coefficient of Determination and How to Interpret it in Linear Regression Analysis
The coefficient of determination in linear regression analysis is crucial in understanding how well the independent variables explain the dependent variable. In linear regression analysis, the coefficient of determination can come in two forms: the coefficient of determination (R square) and the adjusted coefficient of determination (Adjusted R Square).
Natural Logarithm Transformation in Cobb-Douglas Regression
The Cobb-Douglas production function is often referred to as an exponential production function. Researchers have widely used this Cobb-Douglas production function to empirically analyze various phenomena in production functions.
How to Analyze Correlation of Variables Measured Using Likert Scale
Correlation analysis is the chosen method when conducting research to understand the relationship between variables. Correlation analysis in statistics can take the form of partial correlation analysis and multiple correlation analysis.
How to Distinguish Between Paired Sample T-Test and Independent Sample T-Test
The t-test is one of the associative tests researchers frequently use to examine the difference in mean values between variables. This test is applicable only when dealing with two groups of samples. If the tested variables differ among more than two sample groups, then the t-test cannot be utilized.
Hypothesis Testing: Unveiling Insights in Multiple Linear Regression Analysis
In inferential statistics, we need to formulate research hypotheses. These research hypotheses are formulated according to the research objectives. Furthermore, statistical hypotheses need to be established in the analysis method, consisting of null and alternative hypotheses.