How would you describe the distributions of the grades of students who did, and did not, attend class in Figure 3.4? Why would you have expected this kind of distribution even before you saw the data?
Answer to relevant QuestionsIn Table 3.1 the reaction-time data are broken down by the degrees of rotation separating the objects. (You may want to sort the data by this variable.) Use SPSS or another computer program to plot separate histograms of ...The following data represent U.S. college enrollments by census categories as measured in 1982, 1991, and 2005. (The 2005 data are approximate.) Plot the data in a form that represents the changing enrollment patterns of ...As part of the study described in Exercise 3.1, the experimenters obtained the same kind of data from a smaller group who had read the passage before answering the questions (called the Passage group). Their data follow. a) ...With reference to Exercise 4.13, if people take longer to process an image that has been both reversed and rotated, then the mean reaction time should depend on whether or not the comparison stimulus has been reversed. If ...Given the following set of data, demonstrate that subtracting a constant (e.g., 5) from every score reduces all measures of central tendency by that amount.
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