The least-squares regression equation is y = 602.1x + 17,023 where y is the median income and x is the percentage of 25 years and older with at least a bachelor's degree in the region. The scatter diagram indicates a linear relation between the two variables with a correlation coefficient of 0.6748. Complete parts (a) through (d). higher SCIE lower 55000+ 25000 (a) Predict the median income of a region in which 25% of adults 25 years and older have at least a bachelor's degree. $32076 (Round to the nearest dollar as needed.) (b) In a particular region, 29.1 percent of adults 25 years and older have at least a bachelor's degree. The median income in this region is $37,759. Is this income higher than what you would expect? Why? This is than expected because the expected income is $ (Round lar as needed.) 15 20 25 30 35 40 45 50 55 60 Bachelor's %

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The least-squares regression equation is y = 602.1x + 17,023 where y is the median income and x is the percentage
of 25 years and older with at least a bachelor's degree in the region. The scatter diagram indicates a linear relation
between the two variables with a correlation coefficient of 0.6748. Complete parts (a) through (d).
This is
(Round
higher
CE
lower
Median Income
55000-
25000-
15 20 25 30 35 40 45 50 55 60
Bachelor's %
(a) Predict the median income of a region in which 25% of adults 25 years and older have at least a bachelor's degree.
$32076 (Round to the nearest dollar as needed.)
(b) In a particular region, 29.1 percent of adults 25 years and older have at least a bachelor's degree. The median income in this region is $37,759. Is this income higher than what you would expect? Why?
than expected because the expected income is
lar as needed.)
Q
0
Transcribed Image Text:The least-squares regression equation is y = 602.1x + 17,023 where y is the median income and x is the percentage of 25 years and older with at least a bachelor's degree in the region. The scatter diagram indicates a linear relation between the two variables with a correlation coefficient of 0.6748. Complete parts (a) through (d). This is (Round higher CE lower Median Income 55000- 25000- 15 20 25 30 35 40 45 50 55 60 Bachelor's % (a) Predict the median income of a region in which 25% of adults 25 years and older have at least a bachelor's degree. $32076 (Round to the nearest dollar as needed.) (b) In a particular region, 29.1 percent of adults 25 years and older have at least a bachelor's degree. The median income in this region is $37,759. Is this income higher than what you would expect? Why? than expected because the expected income is lar as needed.) Q 0
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