researcher will either use random assignment or matching What do random assignment and matching have in common? They are both designed to create equivalent groups of participants. Random assignment is to random selection as _____ is to _____
1 An unarmed guard from 21st Sentry Security in Dallas-Fort Worth typically costs $14 per hour, while an armed guard starts at $18 per hour. 2  The time of day also affects pricing. 3  Security guards working at a late-night party in the city may cost $30-$50 per hour, for example.
The cost of 50Centâs security per day works out at approximately $2,800 per day and the cost of a modest bodyguard in New York is $75 per hour. What does $2,800 per day get you? It gets you 37 bodyguard hours per day, which can be allocated into one bodyguard for 24 hours plus a second one for 13 hours.