Question

1.    Many traffic accidents are blamed on motorists who are distracted by cell phones use while driving. In a survey conducted by Bruskin/Goldring for Exxon, 29% of adults say that they make phone calls sometimes or frequently while driving alone. Suppose that a recently taken sample of 500 adults showed that 165 of them make phone calls sometimes or frequently while driving alone. At the 5% significant level, can you conclude that the current percentage of adults who make such phone calls exceed 29%?

a.    Perform the hypothesis test in Minitab.

b.    Make a decision and mathematically justify your decision

c.    Interpret the results.

Answer 1