We must be concerned about four possible outcomes before conducting a hypothesis test. (a) Assuming that the

Question:

We must be concerned about four possible outcomes before conducting a hypothesis test.
(a) Assuming that the test already has been conducted and the null hypothesis has been retained, about which of the four possible out-comes must we still be concerned?
(b) Assuming that the test already has been conducted and the null hypothesis has been rejected, about which of the four possible out-comes must we still be concerned?