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Independent random sampling from two normally distributed populations gives the results below. Find a 99% confidence interval estimate of the difference between the means of

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Independent random sampling from two normally distributed populations gives the results below. Find a 99% confidence interval estimate of the difference between the means of the two populations. ny = 66 x = 388 Ox = 17 ny = 38 y = 358 Oy = 26 The confidence interval is

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