Spam:A researcher reported that71.8% of all email sent in a recent month was spam. A system manager at a large corporation believes that the percentage at his company may be78%. He examines a random sample of500emails received at an email server, and finds that367 of the messages are spam. Can you conclude that the percentage of emails that are spam differs from78%? Use both = 0.05 and = 0.10 levels of significance and theP-valuemethod with the table.

State the appropriate null and alternate hypotheses.

H0 =

H1 =

This hypothesis test is a(blank) test. (right-tailed, left-tailed, two-tailed)