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3. In a recent study into renaming Entity 51, 312 of 400 residents surveyed did not mind there being a name change vote. (a) At

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3. In a recent study into renaming Entity 51, 312 of 400 residents surveyed did not mind there being a name change vote. (a) At 85% confidence, construct a confidence interval to predict the true percentage of resi- dents that did not mind there being a name change vote. (b) Repeat this for 92% confidence. (c) Repeat this for 97.5% confidence. (a) Were any assumptions needed to answer the above questions. Why or why not

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