Simple linear regression is used to predict the unknown Y scores based on the X scores. In multiple linear regression, we use two or more in

A paired sample t-test is used to determine if there is a significant difference between the means of two groups but these two groups...

A chi-square test is a statistical procedure used to compare observed results with expected results. The main purpose of this procedure...

The two-way ANOVA is used when we want to know how two independent variables (factors), in combination, affect a dependent variable...

Linear regression and correlation are closely related subjects in which both are commonly used methods for examining the relationship...

Analysis of Variance (ANOVA) is used to determine if there is a significant difference between the means of more than two groups...

The student’s t-test is a type of inferential statistics used to determine if there is a significant difference between two groups...

The normal distribution curve is a bell-shaped curve centered at the mean. Its mean equals 0; and the standard deviation equals 1...

The five-number summary are points that represents five numbers derived from the data...

The first key step toward understanding a set of data is to explore the data and describe it in summary form. The main three aspects of...

Statistics is the science of creating, developing, and applying techniques by which uncertainty of inductive inferences may be evaluated...