MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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To ensure a successful test marketing of its OmniPower energy bars, the OmniFoods marketing department has contracted with In-Store Placements Group (ISPG), a merchandising consult-ing firm. ISPG will work with the grocery store chain that is conducting the test-market study. Using the same 34-store sam-ple used in the test-market study, ISPG claims that the choice of shelf location and the presence of in-store OmniPower coupon dispensers both increase sales of the energy bars
1. Are the supporting data consistent with ISPG’s claims? Perform an appropriate statistical analysis to confirm (or discredit) the stated relationship between sales and the two independent variables of product shelf location and the pres-ence of in-store OmniPower coupon dispensers.
(Please use multpile regression)
2. If you were advising OmniFoods, would you recommend using a specific shelf location and in-store coupon dispens-ers to sell OmniPower bars?
3. What additional data would you advise collecting in order to determine the effectiveness of the sales promotion tech-niques used by ISPG?
| Bars | Price | Promotion | End-Cap | Dispensers |
| 4141 | 59 | 200 | Produce | Yes |
| 3842 | 59 | 200 | Produce | Yes |
| 3056 | 59 | 200 | Beverage | No |
| 3519 | 59 | 200 | Beverage | Yes |
| 4226 | 59 | 400 | Produce | No |
| 4630 | 59 | 400 | Beverage | Yes |
| 3507 | 59 | 400 | Beverage | Yes |
| 3754 | 59 | 400 | Produce | Yes |
| 5000 | 59 | 600 | Produce | No |
| 5120 | 59 | 600 | Produce | No |
| 4011 | 59 | 600 | Beverage | Yes |
| 5015 | 59 | 600 | Beverage | No |
| 1916 | 79 | 200 | Beverage | No |
| 675 | 79 | 200 | Beverage | No |
| 3636 | 79 | 200 | Produce | No |
| 3224 | 79 | 200 | Produce | Yes |
| 2295 | 79 | 400 | Beverage | No |
| 2730 | 79 | 400 | Beverage | Yes |
| 2618 | 79 | 400 | Beverage | No |
| 4421 | 79 | 400 | Produce | Yes |
| 4113 | 79 | 600 | Produce | Yes |
| 3746 | 79 | 600 | Beverage | No |
| 3532 | 79 | 600 | Beverage | No |
| 3825 | 79 | 600 | Beverage | No |
| 1096 | 99 | 200 | Beverage | Yes |
| 761 | 99 | 200 | Beverage | Yes |
| 2088 | 99 | 200 | Produce | Yes |
| 820 | 99 | 200 | Beverage | Yes |
| 2114 | 99 | 400 | Produce | Yes |
| 1882 | 99 | 400 | Beverage | No |
| 2159 | 99 | 400 | Produce | No |
| 1602 | 99 | 400 | Beverage | Yes |
| 3354 | 99 | 600 | Produce | No |
| 2927 | 99 | 600 | Produce | No |
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