Correlation Coefficient and ANOVA Table
Correlation Coefficient and ANOVA Table
? ? ? ? ?
Correlation Coefficient
? Correlation Coefficient:
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Example: Correlation Coefficient
? Scenario:
? Question: ? Answer:
? Question: ? Answer:
Example: Correlation Coefficient
? Scenario:
? Question: ? Answer:
? Takeaway:
Properties of the Correlation Coefficient
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Note: Proofs of properties 1 and 2 require some knowledge of probability theory, covariance, and expectation.
Example: Correlation Same Sign as Slope
? Task:
? Answer:
? ? ?
as a Measure of Association
Population Correlation Coefficient
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Population
Correlation
Coefficient:
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?
?
?
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Five different methods of doing inference with the correlation covered next class.
Univariate Normal Distribution
? Univariate Normal Distribution:
Bivariate Normal Distribution
? Bivariate Normal Distribution:
Conditional Distribution of at
? Conditional Distribution of and :
?
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Why is the bivariate normal distribution important?
?
? coefficient of determination
Sums of Squares
? Total Sum of Squares:
? ?
? Sum of Squares Due to Error:
?
Coefficient of Determination
? Coefficient of Determination:
Example: Calculating
? Scenario:
? Question: ? Answer:
? Question: ? Answer:
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