Easier to Claim, Not More Likely to Chip: A Staggered App Rollout Raised a Nail-Salon Chain's Chip-Guarantee Claim Rate Without Moving an Independent Audit of Actual ChippingResolving to Easier to Claim, Not More Likely to Chip: A Staggered App Rollout Raised a Nail-Salon Chain's Chip-Guarantee Claim Rate Without Moving an Independent Audit of Actual Chipping…