Question: View Policies Current Attempt in Progress A random sample of size nj = 14 is selected from a normal population with a mean of 75

View Policies Current Attempt in Progress A random sample of size nj = 14 is selected from a normal population with a mean of 75 and a standard deviation of 6. A second random sample of size ny = 9 is taken from another normal population with mean 71 and standard deviation 11. Let X] and X2 be the two sample means. Find: (a) The probability that X1 - X2 exceeds 4. (b) The probability that 4.6
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