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Mathematics, 13.12.2019 04:31 lee1677
Arandom sample of size n1equals25, taken from a normal population with a standard deviation sigma1equals6, has a mean x overbar 1equals87. a second random sample of size n2equals33, taken from a different normal population with a standard deviation sigma2equals4, has a mean x overbar 2equals36. find a 96% confidence interval for mu1minusmu2.
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Arandom sample of size n1equals25, taken from a normal population with a standard deviation sigma1eq...
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