Questionvork 6B (4.2-4.3)
Part 1 of 4
The least-squares regression equation is where is the median income and is the percentage of 25 years and ol with at least a bachelor's degree in the region. The scatter diagram indicates a linear relation between the two variables with a correlati coefficient of 0.6807 . Complete parts (a) through (d).
(a) Predict the median income of a region in which of adults 25 years and older have at least a bachelor's degree.
\\square$ (Round to the nearest dollar as needed.)
Studdy Solution
STEP 1
1. The least-squares regression equation is given as .
2. represents the percentage of adults 25 years and older with at least a bachelor's degree.
3. We need to predict the median income () for .
STEP 2
1. Substitute the given percentage into the regression equation.
2. Calculate the predicted median income.
3. Round the result to the nearest dollar.
STEP 3
Substitute into the regression equation:
STEP 4
Calculate the value:
STEP 5
Round the result to the nearest dollar:
The predicted median income is:
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