Which of the following correctly states the null hypothesis? Ho: There is no correlation between cognitive reflectivity and gray-matter density Ho: There is a correlation between cognitive reflectivity and gray-matter density Ho: Gray matter density is independent of cognitive strategies Ho: Gray matter density is dependent on cognitive strategies Ho: The two groups are equivalent or cannot be distinguished.
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.
Which of the following correctly states the null hypothesis?
Ho: There is no |
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Ho: There is a correlation between cognitive reflectivity and gray-matter density |
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Ho: Gray matter density is independent of cognitive strategies |
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Ho: Gray matter density is dependent on cognitive strategies |
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Ho: The two groups are equivalent or cannot be distinguished. |
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