A) Perform a formal test for correlation on the chocolate consumption / Nobel prize winners data in chocolate nobels H0: There is no correlation between chocolate consumption and the number of Nobel prize winners (=0) H1: There is a correlation between chocolate consumption and the number of Nobel prize winners ( is not 0) What is the critical value of Spearman's correlation coefficient, which is required to reject the null hypothesis at a 0.05 confidence level? B) Perform a formal test for correlation on the chocolate consumption / Nobel prize winners data in chocolate nobels H0: There is no correlation between chocolate consumption and the number of Nobel prize winners (=0) H1: There is a correlation between chocolate consumption and the number of Nobel prize winners ( is not 0) True or false: The null hypothesis should be rejected based on your analysis in the preceding questions.
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.
A) Perform a formal test for
H0: There is no correlation between chocolate consumption and the number of Nobel prize winners (=0)
H1: There is a correlation between chocolate consumption and the number of Nobel prize winners ( is not 0)
What is the critical value of Spearman's
B) Perform a formal test for correlation on the chocolate consumption / Nobel prize winners data in chocolate nobels
H0: There is no correlation between chocolate consumption and the number of Nobel prize winners (=0)
H1: There is a correlation between chocolate consumption and the number of Nobel prize winners ( is not 0)
True or false: The null hypothesis should be rejected based on your analysis in the preceding questions.
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