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.
E i = np i. 1  Test statistic. 2  The test statistic is a chi-square random variable (Ï 2) defined by the following equation. 3  where O i is the observed frequency count for the i th level of the categorical variable, and E i is the expected frequency count for the i th level of the categorical variable. Since the test statistic is a chi-square, use the Chi-Square Distribution Calculator to assess the probability associated with the test statistic. 2  Use the degrees of freedom computed above.