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 does not necessarily involve irony and irony has often no touch of sarcasm. A figure of speech in which the intended meaning is the opposite of that expressed by the words used; usually taking the form of sarcasm or ridicule in which laudatory expressions are used to imply condemnation or contempt.rony (from Ancient Greek Îµá¼°ÏÏÎ½ÎµÎ¯Î± (eirÅneia) , eirÅneÃ­a  meaning, dissimulation feigned), ignorance in its broadest, sense is a rhetorical, device literary, technique or event in which what, appears on the, surface to be the, case differs radically from what is actually the. case