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.
Examples of Sarcasm. By YourDictionary. Sarcasm is an ironic or satirical remark that seems to be praising someone or something but is really taunting or cutting. Sarcasm can be used to hurt or offend or can be used for comic affect. Iâm trying to imagine you with a personality.