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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?

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What does variance +/- 30 days mean in excel?

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I need a formula to conditionally format a percentage variance. If the variance is not between 0-5% any other value should be highlighted in red.

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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