At the right is the computer output for a regression analysis involving starting salary (in $1,000) and college GPA. Variable Coef s.e. Constant -0.73391 5.744 -0.128 0.90 15 GPA 11.8204 1.848 6.4 0.0002 S 3.772 R-sq 83.6% R-sq(adj) 81.6% What is the equation for the least Source df SS MS F Regression Residual 8. 581.798 581.798 40.9 squares regression line? 113.802 14.2252 (A) GPA - -0.734 + 11.82(Salary) (D) Salary 5.744 + 1.848(GPA) (B) Salary -0.734 + 11.82(GPA) (E) Salary-1.848 + 11.82(GPA) (C) GPA 0.9015 +0.0002(Salary) %3D
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.
![At the right is the computer output
for a regression analysis involving
starting salary (in $1,000) and
college GPA.
Variable
Coef
s.e.
Constant
-0.73391 5.744 -0.128 0.9015
GPA
11.8204
1.848
6.4
0.0002
S3.772 R-sq 83.6% R-sq(adj) 81.6%
Source
SS
What is the equation for the least
squares regression line?
df
MS
Regression
581.798 581.798 40.9
Residual
8.
113.802 14.2252
(A) GPA - -0.734 + 11.82(Salary)
(D) Salary 5.744 + 1.848(GPA)
%3!
%3D
(B) Salary -0.734 + 11.82(GPA)
(E) Salary 1.848 + 11.82(GPA)
(C) GPA - 0.9015 + 0.0002(Salary)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0ca9040a-da8c-480a-944b-6f28ff9190b5%2F8655be6c-75be-4866-a7ea-0307ea992099%2Fyebagaf_processed.jpeg&w=3840&q=75)
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