The following observations were made on fracture toughness of a base plate of 18% nickel maraging steel [Fracture Testing of Weldments, ASTM Special Publ. No. 381, 1965: 328356 (in ksi in., given in increasing order)]: 69.5 71.9 72.6 73.1 73.3 73.5 75.5 75.7 75.8 76.1 76.2 76.2 77.0 77.9 78.1 79.6 79.7 79.9 80.1 82.2 83.7 93.7 Calculate a 99% CI for the standard deviation of the fracture toughness distribution. Is this interval valid whatever the nature of the distribution? Explain. 4
HSA 3111 CHAPTER 3 STUDY GUIDE Evolution of Health Services in the United States The U.S. Health Care Delivery System The US health care system is shaped by anthrocultural values and the social, political, and economic antecedents. ü A national health care program has failed to make inroads § Although compromises have been made (e.g., Medicare, Medicaid) ü The ACA was passed without broad consensus from Americans Medical science and technology have played a major role in shaping US health care by: ü Influencing medical education ü Making it possible to deliver medical services in settings other than hospitals ü Promoting
