An educational psychologist is testing the discriminant validity of a new measure of numerical learning difficulties. he gives his measure to a group of students along with another measure of verbal learning difficulties, which he predicts should not be strongly related to numerical learning difficulties. which of the following correlations would the psychologist hope to find in order to establish discriminant validity?

Mno corporation uses a job-order costing system with a predetermined overhead rate based on direct labor-hours. the company based its predetermined overhead rate for the current year on the following data: total estimated direct labor-hours 50,000 total estimated fixed manufacturing overhead cost $ 285,000 estimated variable manufacturing overhead per direct labor-hour $ 3.80 recently, job p123 was completed with the following characteristics: total actual direct labor-hours 20 direct materials $ 710 direct labor cost $ 500 the amount of overhead applied to job p123 is closest to: