apply statistical methods and analysis. Unless otherwise stated, use 5% (.05) as your alpha level (cutoff...

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apply statistical methods and analysis. Unless otherwise stated,use 5% (.05) as your alpha level (cutoff for statisticalsignificance).
#1. What information does a correlation coefficient convey?
#2. State whether each of the following is an example of apositive correlation or a negative correlation.
a. Higher education level is associated with a larger annualincome
. b. Increased testosterone is associated with increasedaggression.
c. The smaller the class size, the more students believe theyare receiving a quality education.
d. Rising prices of apples are associated with the sale of fewerapples.
#3. Which is the predictor variable (X) and which is thecriterion variable (Y) for each of the following examples?
a. A researcher tests whether the size of an audience canpredict the number of mistakes a student makes during a classroompresentation.
b. A military officer tests whether the duration of an overseastour can predict the morale among troops overseas. \
c. A social psychologist tests whether the size of a toy incereal boxes can predict preferences for that cereal.

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1The correlation coefficient is a statistical measure thatcalculates the strength of the relationship between the relativemovements of two variables The values range between 10 and 10A calculated number greater than 10 or less than 10 means thatthere was an error in the correlation measurementTo calculate the Correlation coefficient one See Answer

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