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(p.362-363,381-383,Chapter Case Study)Ritz-Carlton Hotels are known for impeccable service.How does the company minimize variability in service quality from hotel to hotel?
F-distribution
A probability distribution used in analysis of variance (ANOVA), depicting ratios of variances to assess the significance of group differences.
Kruskal-Wallis Test
A nonparametric method for testing whether samples originate from the same distribution, used when the assumptions of the ANOVA are not met.
Critical Value
A point on the scale of a statistical distribution that is used to determine the boundary for rejecting the null hypothesis in hypothesis testing.
One-sample T-test
A statistical test used to compare the mean of a single sample to a known average or standard value.
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