If an economist wishes to determine whether there is evidence that mean family income in a community equals $50,000
A)either a one-tail or two-tail test could be used with equivalent results.
B)a one-tail test should be utilized.
C)a two-tail test should be utilized.
D)None of the above.

Question

Quizplus · Accepted Answer

A two-tail test should be utilized when testing whether a mean equals a specific value, as it accounts for the possibility of the mean being both above and below the specified value.

If an Economist Wishes to Determine Whether There Is Evidence