This video explains how to use the p-value to draw conclusions from statistical output. Try the quiz after: This video includes the story of Helen, making sure that the choconutties she sells have sufficient peanuts. 0:00 Introduction 0:17 Formal and informal definitions 0:36 Example - Helen's choconutties 1:03 Null hypothesis 1:19 Alternative hypothesis 1:36 Significance level 1:46 Sample and analysis 2:40 Interpretation 3:10 Not rejecting the null 3:30 Summary 3:50 Small p-value means significant result. 4:33 Disclaimer If you would like more about where the p-value comes from, take a look at "Understanding where the p-value comes from": For a step-by-step description of how to use a p-value in a hypothesis test, see our video Hypothesis Testing: For a quiz to further develop your understanding of a p-value see: See for all of Dr Nic's videos organised by topic. #DrNicStats #Statistics