In which of the following cases is it most likely that the Pearson r will not give meaningful information? Selected Answer: X and Y are skewed; the sample size is 20. Question 2 0.5 out of 0.5 points If X increases in value as Y decreases in value, what type of correlation exists? Selected Answer: B. Negati ve Question 3 0.5 out of 0.5 points In the equation r (65)= .45, p < .05, what are the degrees of freedom?
0.20 -> small ES0.50 -> medium ES0.80 -> large ESSelected Answer: smallQuestion 9 0.5 out of 0.5 pointsThe correlation between Xand Yis known to be negative. Which of the following are true?Selected Answer: Greater values of Xare associated with lower values of Y.Question 10 0.5 out of 0.5 pointsIn a regression, which of the following is used to illustrate the “best guess”as to the predicted Y variable score based on X?Selected Answer: D. regression lineQuestion 11 0.5 out of 0.5 pointsA study is in progress to establish information about blood disorders in bears. A research assistant at the zoo is not all that familiar with the bloodpanel readings of bears. (A blood panel is a set of 14 specific blood tests.) Her supervisor has asked her to inspect the data for outliers. What should she inspect?Selected Answer: scatterplotsQuestion 12
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- Summer '13