9- Describing Residuals: Describe from the textbook as listed in graphics- what does it mean, if anything if residuals are small? 6. What graphic depiction would most effectively help a researcher compare the distribution of the hours spent online among teenagers, young adults, and the elderly and ...
Week 7 Discussion Post # 2
Professor Ramanathan
6. What graphic depiction would most effectively help a researcher compare the distribution of
the hours spent online among teenagers, young adults, and the elderly and why?
In 2007, the average number of hours spent online at home for adults with internet access in the
United States was 8.9 hours with a standard deviation of 0.4 hours. Assume the distribution is
normal. Compared to adults living in Florida who spend 8.0 hours online while at home. What is
the standardized (z) score. Do you think that this score is an unusual value? Why?
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