An Urban Planning Group Is Interested in Estimating the Difference

question 53

Multiple Choice

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

• A) This is a paired design.
• B) There is no significant difference in the mean household incomes between the two neighbourhoods.
• C) There is a significant difference in the mean household incomes between the two neighbourhoods.
• D) This is a paired design and there is no significant difference in the mean household incomes between the two neighbourhoods.
• E) This is a paired design and there is a significant difference in the mean household incomes between the two neighbourhoods.

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