contestada

If an economist wishes to determine whether there is evidence that average family incomes in a community exceeds $25,000:_______

a. either a one-tailed or two-tailed test could be used with equivalent results.
b. a one-tailed test should be utilized.
c. a two-tailed test should be utilized.
d. None of the above.

Respuesta :

Answer: one tailed test should be utilized

Explanation:

From the question, we are informed that an economist wishes to determine whether there is evidence that average family incomes in a community exceeds $25,000.

A one tailed test should be utilized because the region of rejection will just have to be based on one side.