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