1. a print produced by lithography. 2. duplicator that prints by lithography; a flat surface (of stone or metal) is treated to absorb or repel ink in the desired pattern. Familiarity information: LITHOGRAPH used as a noun is rare. â¢ LITHOGRAPH (verb).
1 The P-value is the probability of observing a sample statistic as extreme as the test statistic. 2  Since the test statistic is a t-score, use the t Distribution Calculator to assess the probability associated with the t-score, given the degrees of freedom computed above.
The Z-value is a test statistic for Z-tests that measures the difference between an observed statistic and its hypothesized population parameter in units of standard error. For example, a selection of factory molds has a mean depth of 10cm and a standard deviation of 1 cm.