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You are not logged in. #3 20120425 19:31:59
Re: does anybody knows this?(I'd like to get a second opinion on this, as I have just started statistics, and I had never seen a Venn diagram before last month. I'll ask my stats teacher tomorrow when I'm in if you like, or maybe a more advanced member can tell me if I've got this right). Don't think outside the box. Think there is no box #4 20120425 19:34:35
Re: does anybody knows this?Hi; Where n is the sample size, m is the mean, s is the standard deviation. Can you do the rest? I am getting (146.7082,153.2917) In mathematics, you don't understand things. You just get used to them. I have the result, but I do not yet know how to get it. All physicists, and a good many quite respectable mathematicians are contemptuous about proof. #5 20121031 05:36:12
Re: does anybody knows this?u also need to look up the appropriate z value for a 90% confidence interval, which is, 1.65 for 90%. These z values are available from a number of resources. 