Refer to Original Source 5 on the companion website, “Distractions in everyday driving.” Notice that on page 86 of the report, when the responses are summarized for the quantitative data in question 8, only the mean is provided. But for questions 7 and 9 the mean and median are provided. Why do you think the median is provided in addition to the mean for these two questions?
Answer to relevant QuestionsRefer to Original Source 20 on the companion website, “Organophosphorus pesticide exposure of urban and suburban preschool children with organic and conventional diets.” In Table 4 on page 381, information is presented ...Give an example for which the median would be more useful than the mean as a measure of center. (Do not reuse an example already discussed in this chapter.) Remember that the whiskers on a boxplot can extend 1.5 interquartile ranges (IQRs) from either end of the box, and values beyond that range are considered to be outliers. For normally distributed data, the mean and median ...Remember from Chapter 7 that the range for a data set is found as the difference between the maximum and minimum values. Explain why it makes sense that for a bell-shaped data set of a few hundred values, the range should be ...The 84th percentile for the Stanford-Binet IQ test is 115. (Recall that the mean is 100 and the standard deviation is 15.) a. Verify that this is true by computing the standardized score and using Table 8.1. b. Draw pictures ...
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