Question
The following output is from Excel. Executives rated the service they received in a variety of industries, Airlines, Retail, Hotel, and Automotive. Using an a
The following output is from Excel. Executives rated the service they received in a variety of industries, Airlines, Retail, Hotel, and Automotive. Using an a = .01, test the claim that the executives view service quality as the same in each of these industries, against the notion that they do not.
Anova: Single Factor | |||||
SUMMARY | |||||
Groups | Count | Sum | Average | Variance | |
Airlines | 7 | 365 | 52.14286 | 25.80952 | |
Retail | 6 | 337 | 56.16667 | 23.76667 | |
Hotel | 5 | 328 | 65.6 | 23.3 | |
Automotive | 5 | 251 | 50.2 | 7.7 | |
ANOVA | |||||
Source of Variation | SS | df | MS | F | P-value |
Between Groups | 731.1791 | 3 | 243.7264 | 11.64423 | 0.000148 |
Within Groups | 397.6905 | 19 | 20.93108 | ||
Total | 1128.87 | 22 |
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