Manufacturers were subdivided into groups by volume of sales. those with more than $100 million in sales were classified as large; those from $50 to $100 million as medium size; and those between $25 and $50 and so on. samples were then selected from each of these groups. what is this type of sampling called?

Uppose the book-printing industry is competitive and begins in a long-run equilibrium. then hi-tech printing company invents a new process that sharply reduces the cost of printing books. suppose hi-tech's patent prevents other firms from using the new technology. which of the following statements are true about what happens in the short run? check all that apply. hi-tech's average-total-cost curve shifts downward. hi-tech's profits increase. the price of books remains the same. hi-tech's marginal-cost curve remains the same.

Question 6 of 102 pointswhich situation shows a constant rate of change? oa. the number of tickets sold compared with the number of minutesbefore a football gameob. the height of a bird over timeoc. the cost of a bunch of grapes compared with its weightod. the outside temperature compared with the time of day

Lead time for one of your fastest-moving products is 20 days. demand during this period averages 90 units per day.a) what would be an appropriate reorder point? ) how does your answer change if demand during lead time doubles? ) how does your answer change if demand during lead time drops in half?