schoolS90 schoolS90

15-11-2022
Mathematics

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17) Construct a 95% confidence interval for mu1 - mu2. Assume the two samples are random and independent. The sample statistics are given below.
Population statistics: \sigma 1 = 1.5 and \sigma 2 = 1.9
Sample statistics: X1 = 25, n1 = 50 and X2= 23, n2 = 60

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