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.
