Page 571 These data were obtained online at www.purdue.edu/datadigest/.

Page 572 Example 1: The data were obtained at http://nces.ed.gov/pubs2012/2012046/tables/e-42-1.asp.

Page 574 Example 3: D. M. Barnes, “Breaking the cycle of addiction,” Science, 241 (1988), pp. 1029–1030.

Page 581 There are many computer studies of the accuracy of critical values for . For a brief discussion and some references, see Section 3.2.5 of David S. Moore, “Tests of chi-squared type,” in Ralph B. D’Agostino and Michael A. Stephens (eds.), Goodness-of-Fit Techniques, Marcel Dekker, 1986, pp. 63–95.

Page 581 Example 6: Janice E. Williams et al., “Anger proneness predicts coronary heart disease risk,” Circulation, 101 (2000), pp. 2034–2039.

Page 585 Example 8: Data for Nationsbank are from S. A. Holmes, “All a matter of perspective,” New York Times, October 11, 1995.

Page 588 Exercise 24.4, Exercise 24.5, Exercise 24.6, Exercise 24.7 and Exercise 24.8: The data came from the Pew Social Networking Fact Sheet, obtained at www.pewinternet.org/fact-sheets/social-networking-fact-sheet/.

Page 589 Exercise 24.9: This General Social Survey exercise presents a table constructed using the search function at the GSS archive, http://sda.berkeley.edu/archive.htm. These data are from the 2012 GSS.

Page 589 Exercise 24.10: K. Shamsuddin and M. Abdul Haris, “Family influence on current smoking habits among secondary school children in Kota Bharu, Kelantan,” Singapore Medical Journal, 41 (2000), pp. 167–171.

Page 589 Exercise 24.11: C. I. Vardavas et al., “Smoking habits of Greek preschool children’s parents,” BMC Public Health, 7, No. 112 (2007).

Page 590 Exercise 24.13: R. Shine, T. R. L. Madsen, M. J. Elphick, and P. S. Harlow, “The influence of nest temperatures and maternal brooding on hatchling phenotypes in water pythons,” Ecology, 78 (1997), pp. 1713–1721.

Page 590 Exercise 24.14: From the Annual Review of Public Health: 2015.

Page 590 Exercise 24.15: The data are from the 2014 Digest of Education Statistics at the website of the National Center for Education Statistics, http://nces.ed.gov.

Page 591 Exercise 24.16: The data for the University of Michigan Health and Retirement Study (HRS) can be downloaded from the website http://ssl.isr.umich.edu/hrs/start.php.

Page 591 Exercise 24.18: From reports submitted by airlines to the Department of Transportation, found in A. Barnett, “How numbers can trick you,” Technology Review, October 1994, pp. 38–45.

Page 592 Exercise 24.19: I. Westbrooke, “Simpson’s paradox: an example in a New Zealand survey of jury composition,” Chance, 11 (1998), pp. 40–42.

Page 592 Exercise 24.20: Found online at http://benedicttigers.com/cumestats.aspx?path=mbball&tab=basketball.

Page 593 Exercise 24.25: Brenda C. Coleman, “Study: heart attack risk cut 74% by stress management,” Associated Press dispatch appearing in the Lafayette (Ind.) Journal and Courier, October 20, 1997.

Page 593 Exercise 24.26: David M. Blau, “The child care labor market,” Journal of Human Resources, 27 (1992), pp. 9–39.