The Pew Research Center reported that only 15% of 18- to 24-year-olds read a daily newspaper. The publisher of a local newspaper wants to know whether the percentage of newspaper readers among students at a nearby large university differs from the percentage among 18- to 24-year-olds in general. She surveys a simple random sample of 200 students at the university and finds that 40 of them, or 20%, read a newspaper each day. Can she conclude that the proportion of students who read a daily newspaper differs from 0.15? Use the  α = 0.05 level of significance.

a. State the null and alternate hypotheses.

b. Compute the test statistic.

c. Compute the P-value.

d. State a conclusion.