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?