Freight car loadings over an 18-week period at a busy port are as follows: Week Number Week
Question:
Freight car loadings over an 18-week period at a busy port are as follows:
Week | Number | Week | Number | Week | Number |
1 | 410 | 7 | 460 | 13 | 540 |
2 | 420 | 8 | 480 | 14 | 550 |
3 | 430 | 9 | 500 | 15 | 570 |
4 | 420 | 10 | 490 | 16 | 580 |
5 | 430 | 11 | 510 | 17 | 590 |
6 | 440 | 12 | 530 | 18 | 600 |
a. Determine a linear trend line for expected freight car loadings. (Round your intermediate calculations and final answers to 2 decimal places.)
Y=______________ + ___________t
b. Use the above trend equation to predict expected loadings for Weeks 20 & 21. (Round your final answers to 2 decimal places.)
The forecasted demand for week20 is ____________ and week 21 is _________________
c. The manager intends to install new equipment when the volume exceeds 990 loadings per week. Assuming the current trend continues, in which week (at the earliest) should the loading volume reach that level? (Use the rounded answers, as required, from any previous part of this problem. Do not round any other intermediate calculations. Round your final answer to 2 decimal places.)
It should reach 990 loadings in Week_____________
2. Compute seasonal relatives for this data using the simple averaging (SA) method:
Quarter | Year 1 | Year 2 | Year 3 | Year 4 |
1 | 2 | 3 | 5 | 8 |
2 | 7 | 9 | 13 | 14 |
3 | 1 | 3 | 6 | 8 |
4 | 4 | 7 | 8 | 9 |
(Round all your answers to three decimal points.)
Quarter 1_________________
Quarter 2___________
Quarter 3____________
Quarter 4______________
Income Tax Fundamentals 2013
ISBN: 9781285586618
31st Edition
Authors: Gerald E. Whittenburg, Martha Altus Buller, Steven L Gill