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Q16 D Question 16 0.5 pts To compare two population means, , and us with independent samples, which of the following is correct in constructing

Q16

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D Question 16 0.5 pts To compare two population means, , and us with independent samples, which of the following is correct in constructing a confidence interval for a, - 12: O X1 - X Iza X 3 O d + to.025 mm where d is the sample mean of the differences and so is the standard deviation. O Xi X2 + za X n1 nz O X1 - X2 + za X nitng O X1 - X2 I za X + nz

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