Use the formula to find the standard error of the distribution of differences in sample means,...

Use the formula to find the standard error of the distribution of differences in sample means, x1 - x2. (there are lines above both x's but my computer won't transcribe it)

Samples of size 45 from Population 1 with mean 3.4 and standard deviation 1.5 and samples of size 45 from Population 2 with mean 1.9 and standard deviation 1.4

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Expert Solution

x₁ =	3.400	x₂ =	1.900
s₁ =	1.500	s₂ =	1.400
n₁ =	45.000	n₂ =	45.000

standard error se=√(S²₁/n₁+S²₂/n₂)=sqrt(1.5^2/45+1.4^2/45) =

0.3059

orchestra answered 1 year ago

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