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8. Use the formula to find the standard error of the distribution of differences in sample means x1 - X2 Sample of size 105 for

8. Use the formula to find the standard error of the distribution of differences in sample means x1 - X2

Sample of size 105 for population 1 with mean 90 and standard deviation 12 and samples of size 85 from population 2 with mean 77 and standard deviation 18

Round your answer for the standard error to two decimal places

Standard error=

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