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 17 32 52 28 50 25 y 1 2 7 5 9 3 Complete parts (a) through (e) after verifying that Σx = 204, Σy = 27, Σx2 = 7,926, Σy2 = 169, Σxy = 1,110, and r ≈ 0.8854. A) Find x (in hundreds). (Round your answer to four decimal places.) x = hundred jobs Find y (in hundreds). (Round your answer to four decimal places.) y = hundred jobs Find the equation of the least-squares line ŷ = a + bx. (Round your numerical values to four decimal places.) ŷ =
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 17 32 52 28 50 25 y 1 2 7 5 9 3 Complete parts (a) through (e) after verifying that Σx = 204, Σy = 27, Σx2 = 7,926, Σy2 = 169, Σxy = 1,110, and r ≈ 0.8854. A) Find x (in hundreds). (Round your answer to four decimal places.) x = hundred jobs Find y (in hundreds). (Round your answer to four decimal places.) y = hundred jobs Find the equation of the least-squares line ŷ = a + bx. (Round your numerical values to four decimal places.) ŷ =
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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Problem 1P
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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 | 17 | 32 | 52 | 28 | 50 | 25 |
---|---|---|---|---|---|---|
y | 1 | 2 | 7 | 5 | 9 | 3 |
Complete parts (a) through (e) after verifying that Σx = 204, Σy = 27, Σx2 = 7,926, Σy2 = 169, Σxy = 1,110, and r ≈ 0.8854.
A) Find x (in hundreds). (Round your answer to four decimal places.)
x =
hundred jobs
Find y (in hundreds). (Round your answer to four decimal places.)
y =
hundred jobs
Find the equation of the least-squares line ŷ = a + bx. (Round your numerical values to four decimal places.)
ŷ =
x =
hundred jobs
Find y (in hundreds). (Round your answer to four decimal places.)
y =
hundred jobs
Find the equation of the least-squares line ŷ = a + bx. (Round your numerical values to four decimal places.)
ŷ =
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