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Mathematics, 16.01.2020 23:31 hannahkharel2

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 a) -11.9 b) -23.8 c) -35.7 d) -45.4 and a) 11.9 b) 23.8 c) 35.7 d) 45.4

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