When Do You Say the Difference Between Two Numbers Is

Multiple Choice

When do you say the difference between two numbers is statistically significant?

A) as long as the two numbers are not exactly the same
B) if the difference is large enough so that it is managerially important
C) if the difference is mathematically different
D) if the difference is observed over an extended period of time
E) if the difference is large enough to be unlikely to have occurred because of chance or sampling error