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Question 2 An experiment ws designed to estimate the mean difference in weight gain for pigs fed ration A as compared with those fed ration B. Eight pairs of pigs were used. The pigs within each pair were littermates. The rations were assigned at random to the two animals within each pair. The gains (in pounds) after 45 days are shown below: RationA RationB 65 58 37 39 40 31 47 45 49 47 65 55 53 59 59 51 Assuming weight gain is normal, find the 95% confidence interval estimate for the mean of the differences μd where d= ration A – ration B.

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(Top Tutor) Daniel C.
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