A regional planner is studying the demographics in a region of a particular stat

Question

A regional planner is studying the demographics in a region of a particular state. She has gathered the following data on nine counties.

Is there a linear relationship between the median income and median age? (Round your answer to 3 decimal places.)

Use statistical software to determine the regression equation. (Round your answers to 2 decimal places.)

Interpret the value of the slope in a simple regression equation. (Round your answer to 2 decimal places.)

Include the aspect that the county is "coastal" or not in a multiple linear regression analysis using a "dummy" variable. Does it appear to be a significant influence on incomes? (Negative amounts should be indicated by a minus sign. Round your answers to 2 decimal places.)

Test each of the individual coefficients to see if they are significant. (Round your answers to 2 decimal places. Negative amounts should be indicated by a minus sign. Leave no cells blank - be certain to enter "0" wherever required.)

A regional planner is studying the demographics in a region of a particular state. She has gathered the following data on nine counties.

Explanation / Answer

a) yes

Corelation coedd = 0.848

b)

Income is depencdent variable

c)

Income = 730.76*Age + 6506.16

For 1 year increase in age the income raises by $730.7

d)

Income = 9003.35+ 603.12 Median Age + 6226.45 Coastal

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