Business, 07.04.2020 23:02 pnicetgodp3bqss

An economist is studying the job market in Denver area neighborhoods. Let x represent the total number of jobs in a given neighborhood, and let y represent the number of entry-level jobs in the same neighborhood. A sample of six Denver neighborhoods gave the following information (units in hundreds of jobs).x 13 34 52 28 50 25y 1 4 5 5 9 3Complete parts (a) through (e), given Σx = 202, Σy = 27, Σx2 = 7938, Σy2 = 157, Σxy = 1074, and r ≈ 0.821.(b) Verify the given sums Σx, Σy, Σx2, Σy2, Σxy, and the value of the sample correlation coefficient r. Σx = Σy = Σx2 = Σy2 = Σxy = r = (c) Find x, and y. Then find the equation of the least-squares line y = a + bx.(d) Find the value of the coefficient of determination r2. What percentage of the variation in y can be explainedby the corresponding variation in x and the least-squares line? What percentage is unexplained?(e) For a neighborhood with x = 34 hundred jobs, how many are predicted to be entry level jobs?

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An economist is studying the job market in Denver area neighborhoods. Let x represent the total numb...

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