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To compute the variance, you find the average square of the difference between each value and the mean. For pairs, the mean is half the difference. So take ...

https://www.graphpad.com/guides/prism/latest/curve-fitting/

Sum-of-squares · The first row shows the interaction of rows and columns. · The second row show the the amount of variation that is due to systematic differences ...

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First the programs compute the standard deviations of both groups, and ... The F ratio equals the larger variance divided by the smaller variance. So F ...

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The t test and one-way ANOVA use variances in their internal calculation. The square of the sample SD (without the c4 correction) is the best estimate of the ...

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Perhaps the best way to interpret the value of r is to square it to calculate r2. ... Likewise, 59% of the variance in Y can be explained by variation in X. More ...

https://www.graphpad.com/guides/prism/latest/statistics/

The variance (SS) of the data from the linear regression model equals only 16% of the total variance of the Y values (SStot). How is r2 useful? Many people find ...

https://www.graphpad.com/guides/prism/latest/curve-fitting/

... variance of the differences between A and D, which equals the variance of ... This is a simpler method to calculate, but corrects too far. Prism does ...

https://www.graphpad.com/guides/prism/latest/statistics/

How does a t test work? Based on your experiment, t tests make enough assumptions about your experiment to calculate an expected variability, and then they use ...

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(Most statistics books talk about variance, which is the square of the standard deviation. If the standard deviations are equal, so are the variances.) The ...

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Both t tests report both a P value and confidence interval. The calculations differ in two ways: Calculation of the standard error of the difference between ...

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