Must a party overcome a higher burden to show that an arbitration agreement delegates to the arbitrator the power to decide the availability of class arbitration than to show that it delegates the power to decide the availability of bilateral arbitration?

QUESTIONS PRESENTED 1. Must a party overcome a higher burden to show that an arbitration agreement delegates to the arbitrator the power to decide the availability of class arbitration than to show that it delegates the power to decide the availability of bilateral arbitration? 2. May an arbitration agreement be interpreted to delegate to the arbitrator the power to decide the availability of class arbitration if the agreement lacks an express statement making such a delegation, but instead merely requires the arbitration to be conducted under standard arbitration rules? ii PARTIES TO PROCEEDINGS BELOW Petitioner Spirit Airlines, Inc. was _plaintiffappellant below. Respondents Steven Maizes, Vincent Anzalone, Lee Traylor, and Howard Madenberg were below.