2. Message Mania! An employee at a large corporation receives

an average of μ=41.7emails per day! Management at the

corporation was concerned about this and started a new

protocol to reduce the number of interoffice emails. One month

after the new protocol was put into place, a random sample of

45 employees showed an average of x=36.2emails per day. The

computer server showed that s= 13.5 emails. At the 5% level of

significance, has the new protocol reduced the number of

emails?