16.56 Drive-thru customer service.
Exercise 7.57 (page 395) considered data gathered by QSRMagazine .com in the assessment of drive-thru customer service for the fast-food chains Taco Bell and McDonald’s. Consider in this exercise the comparison between two competing burger fast-food chains: Burger King and Wendy’s.19 Responses ranged from “rude (1)” to “very friendly (5).” The following table breaks down the responses according to two of the chains studied.
burger
| Rating | |||||
| Chain | 1 | 2 | 3 | 4 | 5 |
| Burger King | 11 | 28 | 92 | 117 | 51 |
| Wendy’s | 6 | 17 | 70 | 134 | 98 |
Is there evidence that one restaurant chain has systematically higher satisfaction ratings than the other?