a. Determine a linear trend line for expected freight car loadings. b. Use the trend equation to predict expected loadings for weeks 20 and 21. c. The manager intends to install new equipment when the volume exceeds 800 loadings per week. Assuming the current trend continues, the loading volume will reach that level in approximately what week?
a. Determine a linear trend line for expected freight car loadings. b. Use the trend equation to predict expected loadings for weeks 20 and 21. c. The manager intends to install new equipment when the volume exceeds 800 loadings per week. Assuming the current trend continues, the loading volume will reach that level in approximately what week?
Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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Question
4

Transcribed Image Text:CH03 Q3:
Week
1
2
3
4
5
6
Number
220
245
280
275
300
310
Freight car loadings over a 12-year period at a busy port are as follows:
Number
Week
Week
7
350
13
8
360
14
400
15
380
16
420
450
9
10
11
12
17
18
Number
460
475
500
510
525
541
a. Determine a linear trend line for expected freight car loadings.
b. Use the trend equation to predict expected loadings for weeks 20 and 21.
c.
The manager intends to install new equipment when the volume exceeds 800 loadings per
week. Assuming the current trend continues, the loading volume will reach that level in
approximately what week?
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