The data show the chest size and weight of several bears. Find the regression equation, letting chest size be the independent (x) variable. Then find the best predicted weight of a bear with a chest size of 48 inches. Is the result close to the actual weight of 418 pounds? Use a significance level of 0.05. Chest size (inches) 36 56 50 39 49 42 Weight (pounds) 296 570 501 353 487 385
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.
|
Chest size (inches)
|
36
|
56
|
50
|
39
|
49
|
42
|
|
|---|---|---|---|---|---|---|---|
|
Weight (pounds)
|
296
|
570
|
501
|
353
|
487
|
385
|
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images
