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Use the Following Consider Taking Random Samples of Size 100 from Population a from Population

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Use the following
Consider taking random samples of size 100 from Population A with mean 85 and standard deviation of 15 and random samples of size 60 from Population B with mean 78 and standard deviation 12.
-Find the mean of the distribution of differences in sample means, . Use the following Consider taking random samples of size 100 from Population A with mean 85 and standard deviation of 15 and random samples of size 60 from Population B with mean 78 and standard deviation 12. -Find the mean of the distribution of differences in sample means, .   A)  -7 B)  7 C)  78 D)  85


A) -7
B) 7
C) 78
D) 85

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