Question

4. The article "Commercial information on drugs: confusing the physician" (Hemminki, Journal of Drug Issues. 1988, 245-257) reports that 47 out of 102 doctors surveyed knew the generic name for the drug methadone. Is this evidence that the proportion p of all physicians that know the generic name for methadone is less than one half? (a) State appropriate null and alternate hypotheses. (b) Compute an appropriate test statistic. 01) 01] (c) What would you conclude if the significance level is a0.1 (d) Give a one sided upper 95% confidence bound for the proportion of all phys- cians that know the generic name for methadone. Recall z0.11.282, zo.051.645, 20.025 1.96, z0.01 2.326

Answer 1