Using the output from Exercise 11.8, interpret the results as if they were significant. (What is one of the reasons that this current analysis is not likely to be significant, even if those relationships are reliable in the populations?)
Answer to relevant QuestionsThe following numbers represent 100 random numbers drawn from a rectangular population with a mean of 4.5 and a standard deviation of 2.6. Plot the distribution of these digits. For the IQ data on females in Appendix D (data set Add.dat on the website), test the null hypothesis that µ female = 100. Write a brief paragraph describing the research project in Exercise 12.17 and its results. You would probably be nervous about inferring a population estimate and a confidence interval for the mean U.S. SAT Combined score from the data in Table 11.1, but you are probably much less worried about your confidence ...If there was reason to believe that carry-over effects could influence the data on guessing behavior, how might we control such effects?
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