1. According to a recent article, 32% of drivers had driven drowsy in the past month. (Source: http://thenationshealth. aphapublications. org/content/41/10/E52.full) Law enforcement officials are
planning a survey of 1000 drivers to determine what proportion are driving drowsy.
(ips) a. Is whether a driver has driven drowsy in the past month qualitative or quantitative?
(28T5 ) b. Describe the sampling distribution of p, the sample proportion of drivers who exceed the speed limit.
(3pts) c. In a random sample of 1000 drivers, what is the probability that more than 30% of drivers will have
driven drowsy in the last month?
( 3 PTS)d. Would it be unusual if in a random sample of 1000 drivers, 35% or more were driving drowsy in the
last month?
(2Pty) e. What is the minimum number of drivers that must be sampled to be sure that ø is approximately
normal?