Question: < > mer Access & Re... I) A y (number of entry-level jobs (in hundreds)) 3 4 S 6 7 8 6 2 15


< > mer Access & Re... I) A y (number of entry-level jobs (in hundreds)) 3 4 S 6 7 8 6 2 15 20 Webassign - Eleme... W Test 3 - Spring 202... Student Email | Virg... 2 3 4 5 6 7 8 9 yo 25 x (total number of jobs (in hundreds)) 30 30 35 x (total number of jobs (in hundreds)) 40 45 50 webass y (number of entry-level jobs (in hundreds)) 15 45 40 35 30 25 20 50 50 (b) Verify the given sums x, Ey, Ex, Ey, Exy, and the value of the sample correlation coef : = = = = xy = XI XI (c) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your a + 1 y (number of 3 2 15 20 25 30 30 35 40 45 x (total number of jobs (in hundreds)) 50 y (number c 20 20 15b 2 3 4 5 6 7 8 9 x (total number of jobs (in hundreds)) (b) Verify the given sums Ex, Ey, Ex, Ey, Exy, and the value of the sample correlation coefficient r. (Round your value for r to four decimal places.) x = 200 = 29 = 7738 = 177 xy == 1134 r = 0.8424 (c) Find x, and y. Then find the equation of the least-squares line = a + bx. (Round your answers to four decimal places.) + X (d) Graph the least-squares line. Be sure to plot the point (x, y) as a point on the line. el jobs (in hundreds)) 8 7 6 el jobs (in hundreds)) 6 CO 7 .ed...
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