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Video instructions and help with filling out and completing Who Form 8815 Calculators

Instructions and Help about Who Form 8815 Calculators

Hello welcome to this lesson and mastering statistics we're going to continue working with hypothesis testing in this particular case we're going to start to talk about the concept of a p-value so keep in mind that this right for now is in the context of our large sample hypothesis testing of means so we're doing hypothesis testing with means we're doing large samples for right now and so we have sample size is greater than 30 now up until now we've been doing everything in terms of rejection regions all right and that's basically where the level of significance alpha whether it's left tail right tail or to tail you have to set it all up but essentially you create these boundaries and these are rigid boundaries that you can then look at calculate your test statistic from your data see where it falls and depending on where it falls you can tell if you have rejected the null hypothesis or if you fail to reject it all right well every once in a while when I do teaching I get around to a topic that I get really excited about because p-values in this case is something that gives a lot of students a lot of heartburn a lot of you know scratching your head and trying to figure out what it really means well I'm excited because I can explain this to you I think with some concrete examples and especially after we get through this we do a couple more examples hopefully I believe that you will have very very good understanding what p-values are intuitively number one thing before you do any kind of you know diving into this is I want you to keep in the back your mind that's the purpose of a...

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