1 The appropriate critical value will be selected from the t distribution again depending on the specific alternative hypothesis and the level of significance.  The third factor is the level of significance. The level of significance which is selected in Step 1 (e.g., Î± =0.05) dictates the critical value. For example, in an upper tailed Z test, if Î± =0.05 then the critical value is Z=1.645.
Definition of sarcasm for English Language Learners. : the use of words that mean the opposite of what you really want to say especially in order to insult someone, to show irritation, or to be funny.
Sarcasm is a literary and rhetorical device that is meant to mock with often satirical or ironic remarks with a purpose to amuse and hurt someone or some section of society simultaneously.efinition of Sarcasm. Sarcasm is derived from French word sarcasmor and also from a Greek word sarkazein that means âtear fleshâ or âgrind the teethâ. Somehow, in simple words it means to speak bitterly.