I don't do OCR but i know what it is.
Leme start with the critical regoin, this includes the values of the test statistic that are likely to be rejected under the null hypothesis. So this critical region depends on the level significance because the level of significance determines how small the chance of the test statistic happening under the Ho is..
A two tail test is a hypothesis test where you are told that the probability or mean is"" DIFFERENT FROM"- it can be greater than that in the null hypothesis or less than.
Has that helped?