An assembly line manager changes the times she observes behavior to determine rewards for workers. One day, she observed employees between 10 and 11 a. m., and the next day she stopped by to watch the last 15 minutes of the shift. The manager is using what kind of reinforcement schedule?
variable interval T/F

Scoresby co. uses 6 machine hours and 2 direct labor hours to produce product x. it uses 8 machine hours and 16 direct labor hours to produce product y. scoresby's assembly and finishing departments have factory overhead rates of $240 per machine hour and $160 per direct labor hour, respectively. how much overhead cost will be charged to the two products? a. product x = $1,440; product y = $2,560 b. product x = $1,760; product y = $4,480 c. product x = $3,200; product y = $9,600 d. product x = $800; product y = $800