37. The Heldrich Center for Workforce Development found that 40% of Internet users received more than 10 e-mail messages per day (USA Today, May 7, 2000). A similar study on the use of e-mail was repeated in 2002.

a. Formulate the hypotheses that can be used to determine whether the proportion of Internet users receiving more than 10 e-mail messages per day increased.

b. If a sample of 425 Internet users found 189 receiving more than 10 e-mail messages per day, what is the p-value?

c. At α  .05, what is your conclusion?