Coal Production in the United States Quarter t Future Sales (units/quarter) Yt+3 (103 tons/quarter) ׆ 1 341 173 2 355 147 3 248 106 4 406 184 5 421 233 375 169 7 341 210 8 267 121 9 289 118 10 489 271 11 (now) ? 198
Coal Production in the United States Quarter t Future Sales (units/quarter) Yt+3 (103 tons/quarter) ׆ 1 341 173 2 355 147 3 248 106 4 406 184 5 421 233 375 169 7 341 210 8 267 121 9 289 118 10 489 271 11 (now) ? 198
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A company that manufactures shuttle cars and mines for the coal mining industry has determined that “coal production in the U.S.” is a fairly reliable
three-quarter leading indicator of their sales. This quarter’s coal production in the United States can be obtained from the Department of Energy and it is used to obtain a forecast of their shuttle car and miner sales nine months from now. For the data below, determine a linear equation based on
![Coal Production in
the United States
Quarter t
Future Sales
(units/quarter)
Yt+3
(103 tons/quarter) ׆
1
341
173
2
355
147
3
248
106
4
406
184
5
421
233
375
169](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F10e2e1ef-badc-4a4a-9d69-da85e34113d3%2Fb9050b0c-0c8a-44c6-8bd5-1298bba1de29%2F21fkbr_processed.png&w=3840&q=75)
Transcribed Image Text:Coal Production in
the United States
Quarter t
Future Sales
(units/quarter)
Yt+3
(103 tons/quarter) ׆
1
341
173
2
355
147
3
248
106
4
406
184
5
421
233
375
169
![7
341
210
8
267
121
9
289
118
10
489
271
11 (now)
?
198](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F10e2e1ef-badc-4a4a-9d69-da85e34113d3%2Fb9050b0c-0c8a-44c6-8bd5-1298bba1de29%2Fvul1ly8_processed.png&w=3840&q=75)
Transcribed Image Text:7
341
210
8
267
121
9
289
118
10
489
271
11 (now)
?
198
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