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 the use of language that subverts the user's true meaning or position in order to be scathing or attacking. Specifically, sarcasm is intended to be cutting or wounding to a third party in one's subversive use of language.t is arguable that sarcasm can be used simply for ridicule or for humiliation, not necessarily to be deeply cutting, but more as a way of mocking a target by expressing something that is at odds with the reality of the situation, especially when everyone is aware of that but the target.