One way to get around the problem you see in Exercise 9.11 would be to convert the incidence of Down syndrome to ranked data. Replot the data using ranked incidence and calculate the correlation. Is this a Spearman’s correlation?
Answer to relevant QuestionsIn the study by Katz et al., referred to previously, in which subjects answered questions about passages they had not read, the question arises as to whether there is a relationship between how the students performed on this ...Calculate the correlations among all numeric variables in Exercise 9.1 using SPSS. In Exercise 9.1 Sketch a rough diagram to illustrate the point made in the section on heterogeneous subsamples about the relationship between cholesterol consumption and cardiovascular disease for males and females. Infant mortality is a very serious problem to society. Why would psychologists be interested in this problem any more than people in other professions? The following data represent the actual heights and weights referred to in Chapter 9 for male college students. (a) Make a scatterplot of the data. (b) Calculate the regression equation of weight predicted from height for ...
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