A set of n = 25 pairs of scores (X and Y values) produces a regression equation of Yˆ = 3X – 2. Find the predicted Y value for each of the following X scores: 0, 1, 3, –2.
Answer to relevant QuestionsFor the following set of data, a. Find the linear regression equation for predicting Y from X. b. Calculate the standard error of estimate for the regression equation. The regression equation is computed for a set of n = 18 pairs of X and Y values with a correlation of r = 180 and SSY = 100. a. Find the standard error of estimate for the regression equation. b. How big would the standard ...For the following set of scores, a. Compute the Pearson correlation. b. Add 2 points to each X value and compute the correlation for the modified scores. How does adding a constant to every score affect the value of the ...Earlier in this chapter, we discussed a study investigating the relationship between memory for eyewitnesses and the questions they are asked (Loftus & Palmer, 1974). In the study, participants watched a film of an ...In Chapter 9, we described a study showing that newborn infants spend more time looking at attractive faces when they are shown together with less attractive faces (Slater, et al., 1998). In the study, a pair of faces is ...
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