single-blind study. single-blind study. Etymology: L, singulus, one by one; AS, blind + L, studere, to be busy. an experiment in which the person collecting data knows whether the subject is in the control group or the experimental group, but subjects do not. See also double-blind study.
The suit alleges that Pizza Hut's mandatory delivery fees give customers the impression that they are part of the tip, but drivers receive no portion of it, says the Associated Press.he Hut isn't the only pizza chain to get backlash from employees on shady fee practices: Last year, U.K. chain Pizza Express came under fire for keeping 8 percent of its workers' credit card tips, which it claimed was to cover credit card processing fees.
The two companies had a falling out, and Instacart's personal shoppers are now banned from TJ's stores.) Delivery costs: Delivery is free for your first order. After that, it starts at $3.99 for two hour delivery and $5.99 for one hour delivery when you spend $35 or more. Delivery prices for your individual order are shown at checkout. There's also an option to join the Instacart Express membership club, which offers free delivery on 2 hour and scheduled grocery deliveries over $35 for $99/year, after a free 2-week trial. Tips for your personal shopper optional but encouraged.