Elwin Osbourne, CIO at GFS, Inc $\beta$ = 30
B)n = 300
C)p < 0

Multiple Choice

Elwin Osbourne, CIO at GFS, Inc., suspects that at least 25% of e-mail messages sent by GFS employees are not business related.A random sample of 300 e-mail messages was selected to test this hypothesis at the 0.01 level of significance.Fifty-four of the messages were not business related.The null hypothesis is ____.

A) $\beta$ = 30
B) n = 300
C) p < 0.25
D) p ≠ 0.25
E) p = 0.25