7. Freight car loadings over a 12-year period at a busy port are as follows: Week Number Week Number Week Number 1 220 7 350 13 460 2 245 8 360 14 475 3 280 9 400 15 500 4 275 10 380 16 510. 5 300 11 420 17 525 6 310 12 450 18 541 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?

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter9: Decision Making Under Uncertainty
Section: Chapter Questions
Problem 46P
icon
Related questions
Question

If excel required then attached screenshot 

7. Freight car loadings over a 12-year period at a busy port are as follows:
Week Number Week Number Week
1
220
7
350
13
2
245
89
360
14
3
280
9
400
15
4
275
10
380
16
5
300
11
420
17
6
310
12
450
18
Number
460
475
500
510.
525
541
Year
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?
Transcribed Image Text:7. Freight car loadings over a 12-year period at a busy port are as follows: Week Number Week Number Week 1 220 7 350 13 2 245 89 360 14 3 280 9 400 15 4 275 10 380 16 5 300 11 420 17 6 310 12 450 18 Number 460 475 500 510. 525 541 Year 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?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 2 images

Blurred answer
Similar questions
Recommended textbooks for you
Practical Management Science
Practical Management Science
Operations Management
ISBN:
9781337406659
Author:
WINSTON, Wayne L.
Publisher:
Cengage,
Purchasing and Supply Chain Management
Purchasing and Supply Chain Management
Operations Management
ISBN:
9781285869681
Author:
Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:
Cengage Learning
Contemporary Marketing
Contemporary Marketing
Marketing
ISBN:
9780357033777
Author:
Louis E. Boone, David L. Kurtz
Publisher:
Cengage Learning