We wish to estimate the effect of weight on serum cholesterol (S. C.) level in healthy females aged between 20 and 25. To estimate the regression equation of S.C. level on weight, a random sample of 10 females in this age class was taken, with the following results: a. Compute (beta) B^ 1 the estimate of the slope coefficient b. Compute (beta) B^ 0 the estimate of the intercept
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.
We wish to estimate the effect of weight on serum cholesterol (S. C.) level in healthy females aged between 20 and 25. To estimate the regression equation of S.C. level on weight, a random sample of 10 females in this age class was taken, with the following results:
a. Compute (beta) B^ 1 the estimate of the slope coefficient
b. Compute (beta) B^ 0 the estimate of the intercept
| person# | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
| X | 53.7 | 56.8 | 54.1 | 54.4 | 55.1 | 55.8 | 56.3 | 57.1 | 56.6 | 57.6 |
| Y | 124.8 | 126.2 | 125.7 | 125.1 | 126.5 | 124.6 | 126.4 | 127.8 | 127.3 | 127.4 |
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