In Coontz "meta-study" of divorce, she finds that there is a correlation between divorce (X) and emotional and school problems for kids (Y), but she also points out that:

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Q: A set of n=15 pairs of scores (X and Y values) has SSx= 4, SSy=25, and SP=6. What is the Pearson…

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A: Given sample size n = 15SSx = 16,   SSy = 4 and Sp = 2.The pearson correlation coefficient is…

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Q: would it make sense to say this is a correlational study because variables were not manipulated and…

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Q: If you were to test the Pearson correlation coefficient for significance, what would be  the…

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Q: With the growth of internet service providers, a researcher decides to examine whether there is a…

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Q: In a dataset, X is the independent variable, and Y is the dependent variable, and r is Karl…

A: Given  Karl Pearson's coefficient of correlation is r=-0.0999

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A: Formula for correlation coefficients r.  r= SSXY/√SSXX*SSYY

Q: why we do not prefer to apply the spearman correlation on the quantitative variables ?

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A: Correlation doesn’t imply causation.

Q: . For which data set is the sample correlation coefficient r closest to 0? B. Which data set has an…

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Q: If a researcher measured hearing acuity and age for a group of people who were 50 to 90 years old,…

A: If a researcher measured hearing acuity and age for a group of people who were 50 to 90 years old,…

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Q: What information is provided by the numerical value of the Pearson correlation?

A: From the given question, Correlation coefficient:

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Q: If the correlation coefficient between X and Y is equal to zero, then:

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Q: Why should one be cautious when interpreting a correlation?

A: Why should one be cautious when interpreting a correlation?

Q: Assuming that ss, is constant, which of the following correlations would have the smallest…

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Q: why are correlations useful in econometrics?

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Q: If a set of data has a very weak negative correlation, the residual values will be

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Q: A set of n=15 pairs of scores (x and y values) has Ssx =200, Ssy=60, and Sp=30.What is the Pearson…

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Q: Observational studies can reveal only association, whereas designed experiments can help establish…

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Q: If covariance between X and Y variables is 10 and the variances of X and Y are respectively 16 and…

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Q: from a correlation?

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Q: When can correlation evidence help answer a casual question?

A: I guess, instead of casual, you meant causal.  Correlation is the measure of the degree of…