Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary. x 1.2 1.4 1.6 1.8 2.0 y 54 53 55 54 56 Let a= 0.05 What calculator function did you use to find r and the regression equation? r= critical value from table ________ Is there a strong enough linear correlation to use the regression equation given? What is the regression equation? (Round to 3 decimal places) y hat= What is the best predicted y-value when x= 1.9? Please answer all questions with details.
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.
Use the given data to find the equation of the regression line. Round the final values to three significant digits, if necessary.
x 1.2 1.4 1.6 1.8 2.0
y 54 53 55 54 56
Let a= 0.05
What calculator
r=
critical value from table ________
Is there a strong enough
What is the regression equation? (Round to 3 decimal places)
y hat=
What is the best predicted y-value when x= 1.9?
Please answer all questions with details.
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