Question 38 (1 point) A researcher measures IQ and weight for a group of college students. Which kind of correlation is likely to be obtained for these two variables? a positive correlation a negative correlation O a correlation near 0 O a correlation near 1 Question 39 (1 point) A set of n = 10 pairs of scores has EX - 20, EY= 30, and EXY = 74. What is the value of SP for these data? O SP - 74 SP - 24 O SP - 14 O SP - 44 Question 40 (1 point) A set of n = 15 pairs of scores (X and Yvalues) has SSx = 4, SSy = 25, and SP = 6. What is the Pearson correlation for these data? Or= 0.10 Or= 0.60 Or= 0.16 Or= 0.06Question 35 (1 point) What is the null hypothesis of a one-tailed repeated-measures research study if a treatment is expected to increase scores on a questionnaire, relative to pre-test scores on a questionnaire? There is no decrease in scores after treatment. There is no increase in scores after treatment. There is a decrease in scores after treatment. There is an increase in scores after treatment. Question 36 (1 point) What is indicated by a positive value for a correlation? O increases in X tend to be accompanied by increases in Y O increases in X tend to be accompanied by decreases in Y increases in X tend to be accompanied by decreases in Y up to a point and then are accompanied by increases in Y increases in X tend to be accompanied by increases in Yup to a point and then are accompanied by decreases in Y Question 37 (1 point) What would the scatter plot show for data that produce a Pearson correlation of r +0.88? points widely scattered around a line that slopes down to the right points widely scattered around a line that slopes up to the right O points clustered close to a line that slopes up to the right points clustered close to a line that slopes down to the right