Question
A famous hamburger place experiences significantly higher sales on Fridays and Saturdays compared to the other days of the week. The accompanying data file includes
A famous hamburger place experiences significantly higher sales on Fridays and Saturdays compared to the other days of the week. The accompanying data file includes the sales for 10 weeks.
Estimate a linear trend model along with a weekend dummy variable that captures the higher sales volume for Fridays and Saturdays.
Note: Negative values for regression coefficients should be indicated by a minus sign. Round final answers to 2 decimal places.
Predictor Variable Coefficient
Constant ________
Trend, t ________
Weekend Dummy, d ________
Use the estimated model to forecast the sales for Monday and Friday of week 11?
Note: Round coefficient estimates to at least 4 decimal places and final answers to 2 decimal places.
Forecast Coefficient
Monday, Week 11 __________
Friday, Week 11 __________
| Week | Day | Sales |
| 1 | Monday | 1829 |
| 1 | Tuesday | 1412 |
| 1 | Wednesday | 1006 |
| 1 | Thursday | 643 |
| 1 | Friday | 1531 |
| 1 | Saturday | 2217 |
| 1 | Sunday | 663 |
| 2 | Monday | 814 |
| 2 | Tuesday | 1265 |
| 2 | Wednesday | 865 |
| 2 | Thursday | 1321 |
| 2 | Friday | 2253 |
| 2 | Saturday | 1763 |
| 2 | Sunday | 1401 |
| 3 | Monday | 1553 |
| 3 | Tuesday | 782 |
| 3 | Wednesday | 901 |
| 3 | Thursday | 1735 |
| 3 | Friday | 3573 |
| 3 | Saturday | 3069 |
| 3 | Sunday | 844 |
| 4 | Monday | 912 |
| 4 | Tuesday | 2279 |
| 4 | Wednesday | 2800 |
| 4 | Thursday | 2841 |
| 4 | Friday | 2540 |
| 4 | Saturday | 3461 |
| 4 | Sunday | 1102 |
| 5 | Monday | 2466 |
| 5 | Tuesday | 2370 |
| 5 | Wednesday | 3222 |
| 5 | Thursday | 1812 |
| 5 | Friday | 3849 |
| 5 | Saturday | 5055 |
| 5 | Sunday | 2098 |
| 6 | Monday | 3133 |
| 6 | Tuesday | 2814 |
| 6 | Wednesday | 3069 |
| 6 | Thursday | 3069 |
| 6 | Friday | 3729 |
| 6 | Saturday | 3457 |
| 6 | Sunday | 2994 |
| 7 | Monday | 3690 |
| 7 | Tuesday | 3559 |
| 7 | Wednesday | 5102 |
| 7 | Thursday | 3436 |
| 7 | Friday | 4278 |
| 7 | Saturday | 5150 |
| 7 | Sunday | 4039 |
| 8 | Monday | 3543 |
| 8 | Tuesday | 4119 |
| 8 | Wednesday | 2104 |
| 8 | Thursday | 3469 |
| 8 | Friday | 4885 |
| 8 | Saturday | 5396 |
| 8 | Sunday | 4504 |
| 9 | Monday | 4352 |
| 9 | Tuesday | 4736 |
| 9 | Wednesday | 3146 |
| 9 | Thursday | 4561 |
| 9 | Friday | 5322 |
| 9 | Saturday | 5359 |
| 9 | Sunday | 3743 |
| 10 | Monday | 3478 |
| 10 | Tuesday | 4351 |
| 10 | Wednesday | 4207 |
| 10 | Thursday | 4326 |
| 10 | Friday | 6571 |
| 10 | Saturday | 5460 |
| 10 | Sunday | 5752 |
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started
Probability With Applications and R
Authors: Robert P. Dobrow
1st edition
1118241257, 1118241258, 978-1118241257
