A busy intersection in Arizona avAn employee survey conducted two years ago by Rice Motors, Inc. found that 53% of its employees were concerned about future health care benefits. A random sample of 80 employees was asked if they were concerned about future care benefits. What is the upper limit of the sample proportion such that only 3% of the time the sample proportion would exceed this value? erages a traffic accident every 27 days. What is the probability that the next accident will occur within the next 15 and 21 days