The board of a national central bank is meeting to decide if it should increase interest rates in order to slow inflation. State the null and alternative hypotheses regarding inflation that the board would formulate to guide its decision

What are the null and alternative hypotheses?

A$.H_0.$ Increase interest rates in order to slow inflation.

$H_1.$ Reduce interest rates in order to slow inflation.

B$.H_0$ Reduce interest rates in order to slow inflation.

$H_1.$ Increase interest rates in order to slow inflation.

C$.H_0.$ No change in interest rates is warranted

$H_1.$ Change interest rates in order to slow inflation.

D$.H_0.$ No change in interest rates is warranted

$H_1$ Increase interest rates in order to slow inflation.