44. In a cover story, BusinessWeek published information about sleep habits of Americans (BusinessWeek, January 26, 2004). The article noted that sleep deprivation causes a number of problems. The article noted that lack of sleep causes highway deaths. Fifty-one percent of adult drivers admit to driving while drowsy. A researcher hypothesized that this issue was an even bigger problem for night shift workers.

a. Formulate the hypotheses that can be used to help determine whether more than 51% of the population of night shift workers admit to driving while drowsy.

b. A sample of night shift workers identified those who admitted to driving while drowsy. The sample results are in the CD file named Drowsy. What is the sample proportion? What is the p-value?

c. At α  .01, what is your conclusion?