An airline company is interested in the opinions of their frequent flyer customers about their proposed new routes. specifically, they want to know what proportion of them plan to use one of their new hubs in the next 10 months. of their customers, 45% are silver-level, 30% are blue, and 25% are red. they first compile separate lists of silver, blue, and red members and then randomly select 4500 silver members, 3000 blue members, and 2500 red members to e-mail. they take that sample of 10,000 and send them an e-mail message with a request to fill out a survey in exchange for 2000 miles. what kind of sampling method have they used?

Who has summer school : ( because i do : (

Jewelry manufacturers produce a range of products such as rings, necklaces, bracelets, and brooches. what fundamental economic question are they addressing by offering this range of items?

In each of the cases below, assume division x has a product that can be sold either to outside customers or to division y of the same company for use in its production process. the managers of the divisions are evaluated based on their divisional profits. case a b division x: capacity in units 200,000 200,000 number of units being sold to outside customers 200,000 160,000 selling price per unit to outside customers $ 90 $ 75 variable costs per unit $ 70 $ 60 fixed costs per unit (based on capacity) $ 13 $ 8 division y: number of units needed for production 40,000 40,000 purchase price per unit now being paid to an outside supplier $ 86 $ 74 required: 1. refer to the data in case a above. assume in this case that $3 per unit in variable selling costs can be avoided on intracompany sales. a. what is the lowest acceptable transfer price from the perspective of the selling division? b. what is the highest acceptable transfer price from the perspective of the buying division? c. what is the range of acceptable transfer prices (if any) between the two divisions? if the managers are free to negotiate and make decisions on their own, will a transfer probably take place?