I hate to link to Gary Leff, but he's spot on here. This customer satisfaction report is
prima facie absurd. The graph is an amateur hack job by somebody who has no credible background in statistics or measurement. Note the fine print:
"Rankings are based on numerical scores, and not necessarily on statistical significance."
To rank based on statistical significance would be absolute nonsense. Whoever hired the team that produced this junk report needs to realize they've been had by data science charlatans.
JD Power May Be Smart About Lots of Things, But Hotel Loyalty Ain’t One
Edit:
Kacee beat me to it!