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Mathematics, 19.12.2019 00:31 Jocelyn0925

The difference of the sample means of two populations is 34.6, and the standard deviation of the difference of the sample means is 11.9.

the 95% confidence interval lies between -11.9 -23.8 -35.7 -45.4 and +11.9 +23.8 +35.7 +45.4 .

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