A larger and more modern main post office is to be constructed at a new location in Davis, California. Growing suburbs caused a shift in the population density from where it was 40 years ago, when the current facility was built. Annette Werk, the postmaster, asked her assistants to draw a grid map of the seven points where mail is picked up and delivered in bulk. The coordinates and trips per day to and from the seven mail source points and the current main post office, M, are shown in the following table. M will continue to act as a mail source point after relocation. Mail Source Point Round trips per day x, y, Coordinates (miles) 1 (4, 6) (8, 4) (3, 14) (6, 10) (12, 11) (13, 5) (13, 6) (14, 10) 7 3 1 4 11 5 7 6 3 7 3 M 8 a. Calculate the center of gravity as a possible location for the new facility. (Enter your responses rounded to the nearest whole number.) The center of gravity "X" coordinate = 9. The center of gravity "Y" coordinate = 8. b. Compare the load-distance scores for the location in part (a) and the current location, using rectilinear distance. (Round all intermediate calculations to the nearest whole number.) The load-distance score to "M" is 297 . (Enter your response as an integer.) The load-distance score to the center of gravity is (Enter your response rounded to the nearest whole number.)
A larger and more modern main post office is to be constructed at a new location in Davis, California. Growing suburbs caused a shift in the population density from where it was 40 years ago, when the current facility was built. Annette Werk, the postmaster, asked her assistants to draw a grid map of the seven points where mail is picked up and delivered in bulk. The coordinates and trips per day to and from the seven mail source points and the current main post office, M, are shown in the following table. M will continue to act as a mail source point after relocation. Mail Source Point Round trips per day x, y, Coordinates (miles) 1 (4, 6) (8, 4) (3, 14) (6, 10) (12, 11) (13, 5) (13, 6) (14, 10) 7 3 1 4 11 5 7 6 3 7 3 M 8 a. Calculate the center of gravity as a possible location for the new facility. (Enter your responses rounded to the nearest whole number.) The center of gravity "X" coordinate = 9. The center of gravity "Y" coordinate = 8. b. Compare the load-distance scores for the location in part (a) and the current location, using rectilinear distance. (Round all intermediate calculations to the nearest whole number.) The load-distance score to "M" is 297 . (Enter your response as an integer.) The load-distance score to the center of gravity is (Enter your response rounded to the nearest whole number.)
Practical Management Science
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Transcribed Image Text:A larger and more modern main post office is to be constructed at a new location in Davis, California. Growing suburbs caused a shift in the population density from
where it was 40 years ago, when the current facility was built. Annette Werk, the postmaster, asked her assistants to draw a grid map of the seven points where mail
is picked up and delivered in bulk. The coordinates and trips per day
following table. M will continue to act as a mail source point after relocation.
and from the seven mail source points and the current main post office, M, are shown in the
Round trips per day
x, y, Coordinates (miles)
(4, 6)
(8, 4)
(3, 14)
Mail Source Point
4
2
7
3
(6, 10)
(12, 11)
(13, 5)
(13, 6)
(14, 10)
11
7
6
3
7
3
8
a. Calculate the center of gravity as a possible location for the new facility. (Enter your responses rounded to the nearest whole number.)
The center of gravity "X" coordinate = 9
The center of gravity "Y" coordinate = 8.
b. Compare the load-distance scores for the location in part (a) and the current location, using rectilinear distance. (Round all intermediate calculations to the
nearest whole number.)
The load-distance score to "M" is 297. (Enter your response as an integer.)
The load-distance score to the center of gravity is. (Enter your response rounded to the nearest whole number.)
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