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Mathematics, 05.05.2020 19:25 damyonfenton13
A regional planner employed by a public university is studying the demographics of nine counties in the eastern region of an Atlantic seaboard state.
She has gathered the following data:
County Median Income Median Age Coastal
A $ 48,725 55.3 1
B 48,383 53.7 1
C 46,862 46.5 1
D 48,777 57.9 0
E 36,339 43.4 0
F 37,618 40.3 0
G 37,495 37.2 0
H 38,301 31.2 1
I 37,705 32.5 1
(a) Is there a linear relationship between the median income and median age? (Round your answer to 3 decimal places.) What is the Correlation?
(b) Which variable is the "dependent" variable?
(c) Use regression analysis to determine the relationship between median income and median age. (Round your answers to 2 decimal places.)
(d) Interpret the value of the slope in a simple regression equation. (Round your answers to 2 decimal places.)
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