Aishia Eckert: Attempt 1. Question 11 (1 point) Joint costs are costs incurred in producing or purchasing a single product. O True False Save Question 12 (1 point) A joint cost of producing two products can be allocated between those products on the basis of the relative physical quantities of each product produced. True False Question 13 (1 point) Investment center managers are typically evaluated using performance measures that combine income and as False