2008-08-122008-08-122008-082008-08-12http://hdl.handle.net/2263/6552Microsoft Excel Spreadsheet with interactive hyperlinks and activities.In statistical hypothesis testing, the P-value is the probability of obtaining a value of the test statistic at least as extreme as the one that was actually observed, given that the null hypothesis is true. The fact that P-values are based on this assumption is crucial to their correct interpretation.470016 bytesapplication/vnd.ms-excelenUniversity of PretoriaHypotheses testingP-valuesSample sizeType I errorHistograme-StatsSampling (Statistics) -- Computer programsStatistical hypothesis testingLearning Object