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An urban planning group is interested in estimating the difference in mean household income between two neighborhoods. They obtain the 95%confidence interval below, 95%CI for difference(-5693,-4107) Show work. Which is true?

a. This is paired design,

b. There is no significant difference in the mean household incomes between the two neighborhoods +0.05

c. There is difference

d. I only, both I andII, II only,Both Iand III,IIIonly

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