The administration of a large university is interested in learning about the types of wellness programs that would interest its employees. suppose that the university randomly selects a school (e. g., the business school) and surveys all of the individuals (administration, faculty, professional staff, clerical and maintenance) who work in that school. what is this sampling plan called?

When a company produces and sells x thousand units per week, its total weekly profit is p thousand dollars, where upper p equals startfraction 800 x over 100 plus x squared endfraction . the production level at t weeks from the present is x equals 4 plus 2 t. find the marginal profit, startfraction dp over dx endfraction and the time rate of change of profit, startfraction dp over dt endfraction . how fast (with respect of time) are profits changing when tequals8?