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    Regression assignment - desperate need of help!

    i need to find a study with a significant quadratic trend, and then recreate made up data so it has the same mean, mean squared, F, etc. is there a formula for this that i'm not aware of? it's been eating up a ton of my time and i'm spinning my wheels.
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    St. deviation between groups

    My professor gave us this formula: https://ibb.co/5WDvNHK There are two groups, trying to figure out and justify the equation. Mean for x1: 49.974 Mean for x2: 45.02 st. dev 1: .25 st. dev 2: .46 Is my math tracking? Feel like I'm missing something. Shout out to anyone willing to help on a...