An article in Time describing various aspects of American life indicated that higher educational achievement paid off! College grads work 7.4 hours per day, fewer than those with less than a college education. Suppose that the average work day for a random sample of n = 100 individuals who had less than a 4-year college education was calculated to be  = 7.9 hours with a standard deviation of s = 1.9 hours.
a. Use the p-value approach to test the hypothesis that the average number of hours worked by individuals having less than a college degree is greater than individuals having a college degree. At what level can you reject H0?
b. If you were a college graduate, how would you state your conclusion to put yourself in the best possible light?
c. If you were not a college graduate, how might you state your conclusion?