Homework: homework 4.2 Question 2, 4.2.13 HW Score: 5.26%, 1 of 19 points Part 2 of 4 O Points: 0 of 4 The least-squares regression equation is y = 741.5x + 14,138 where y is the median income and x is the 55000- O 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 0.7877. Complete parts (a) through (d). Median Income 20000 15 20 25 30 35 40 45 50 55 60 Bachelor's % (a) Predict the median income of a region in which 20% of adults 25 years and older have at least a bachelor's degree. $ 28968 (Round to the nearest dollar as needed.) (b) In a particular region, 28.5 percent of adults 25 years and older have at least a bachelor's degree. The median income in this region is $31,998. Is this income higher than what you would exp This is than expected because the expected income is $ (Round to the nearest dollar as needed.)