In: Math
For each of the following exercises 1 to 4: For each test use either the critical value or the P-value method you are not required to use both.
The department of transportation in a particular city knows from past records that 27% of workers in the downtown district use the subway system each day to commute to and from work (that is 27 success out of 100 trials). The department suspects that this proportion has increased owing to decreased parking spaces in the downtown district. A random sample of 130 workers in the downtown district showed that 49 used the subway daily. Test the claim at the 5% level of significance.