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    Hey, can you help me interpret this? It's a two sample equal variance t-test. Is it significant or not?
    Solved by F. S. in 20 mins
    What does variance +/- 30 days mean in excel?
    Solved by S. L. in 25 mins
    I have a problem regarding to How to Calculate the Percent Variance in Excel
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    How can I test the alternative hypothesis for US and China sample populations that their economy growth rate is equal with Hypothesized Mean Difference of at least 2.5, significance level of 9.8%. Note that we are assuming that the variance is not equal. Much thanks
    Solved by A. L. in 20 mins
    Continue with problem on variance. Need a fomula in cell C8 that will add the variance from the current month with any variance from prior months based off the two criteria chosen in cells D4 & D5 (Name & Cost Category).
    Solved by E. U. in 19 mins