Cholesterol Does a person’s cholesterol level tend tochange with age? Data collected from 1406 adults aged45 to 62 produced the regression analysis shown. Assumingthat the data satisfy the conditions for inference, examinethe association between age and cholesterol level.Dependent variable is: Chols = 46.16Variable Coefficient SE(Coeff) t-ratio P-valueIntercept 194.232 13.55 14.3 ...0.0001Age 0.771639 0.2574 3.00 0.0027a) State the appropriate hypothesis for the slope.b) Test your hypothesis and state your conclusion in theproper context.
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.
Cholesterol Does a person’s cholesterol level tend to
change with age? Data collected from 1406 adults aged
45 to 62 produced the
that the data satisfy the conditions for inference, examine
the association between age and cholesterol level.
Dependent variable is: Chol
s = 46.16
Variable Coefficient SE(Coeff) t-ratio P-value
Intercept 194.232 13.55 14.3 ...0.0001
Age 0.771639 0.2574 3.00 0.0027
a) State the appropriate hypothesis for the slope.
b) Test your hypothesis and state your conclusion in the
proper context.
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