Question: Assuming that both populations are normally distributed, construct a 95% confidence interval about !1 - 12. (u1 represents Experimental Control the mean of the experimental

Assuming that both populations are normally distributed, construct a 95% confidence interval about !1 - 12. (u1 represents Experimental Control the mean of the experimental group and u2 represents the mean of the control group.) 21 18 X 47.8 49.7 S 7.1 12.1 The confidence interval has a lower bound of and an upper bound of (Use ascending order. Round to two decimal places as needed.)

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