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    Binomial Test in Excel

    What is the probability of getting AT LEAST 79 out of 90 correct on a True or False test if you are guessing on every question? I think I need to do a cumulative binomial test for this. But I don't know how to do this in Excel. Would it be =Binomdist(79, 90, .5, FALSE) or would it be...
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    Population Mean, Population Standard Deviation, and z-scores

    Hello! My stats teacher gave me a problem with a list of 20 numbers: 1000, 1290, 1290, 1200, 1460, 1410, 1320, 1300, 1290, 1150, 1300, 1600, 1080, 1360, 1110, 940, 1200, 1430, 1410, 1060 She then told us to find the population mean and the population standard deviation so that we could...