To diversify, a homeowner with a variable-rate mortgage should choose investments that a. pay higher returns when interest rates rise and lower returns when interest rates fall. b. pay lower returns when interest rates rise and higher returns when interest rates fall. c. provide a higher return than the market average. d. provide a lower return than the market average.

Assume that (i) setups need to be completed first; (ii) a setup can only start once the batch has arrived at the resource, and (iii) all flow units of a batch need to be processed at a resource before any of the units of the batch can be moved to the next resource. process step 1 molding 2 painting 3 dressing setup time 15 min. 30 min. no setup processing time 0.25 min./unit 0.15 min./unit 0.30 min./unit which batch size would minimize inventory without decreasing the process capacity?