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Definition of a p-value. How to use a p-value in a hypothesis test. Find the value on a ti 83 calculator.

The assumption that the null hypothesis is true—the graphs are centered on the null hypothesis value. The significance level—how far out do we draw the line for the critical region? S. 3. 2 hypothesis testing (p-value approach) the p -value approach involves determining likely or unlikely by determining the probability — assuming the null hypothesis was true — of. The p -value is used in the context of null hypothesis testing in order to quantify the statistical significance of a result, the result being the observed value of the chosen statistic.