Xcompany must replace one of its current machines with either machine a or machine b. the useful life of both machines is seven years. machine a costs $52,000, and machine b costs $71,000. estimated annual cash flows with the two machines are as follows: year machine a machine b 1 $-6,000 $-7,000 2 -8,000 -4,000 3 -8,000 -3,000 4 -8,000 -3,000 5 -6,000 -3,000 6 -5,000 -2,000 7 -4,000 -2,000 if x company buys machine b instead of machine a, what is the payback period (in years)?

What is an example of a good stock to buy during economic expansion? a) cyclical stock b) defensive stock c) income stock d) bond

The amberssen specialty company is a chain of twelve retail stores that sell a variety of imported gift items, gourmet chocolates, cheeses, and wines in the toronto area. amberssen has an is staff of three people who have created a simple but effective information system of networked point-of-sale registers at the stores and a centralized accounting system at the company head- quarters. harry hilman, the head of amberssens is group, has just received the following memo from bill amberssen, sales director (and son of amberssen’s founder). harry—it’s time amberssen specialty launched itself on the internet. many of our competitors are already there, selling to customers without the expense of a retail storefront, and we should be there too. i project that we could double or triple our annual revenues by selling our products on the internet. i’d like to have this ready by - giving, in time for the prime holiday gift-shopping season. bill after pondering this memo for several days, harry scheduled a meeting with bill so that he could clarify bill’s vision of this venture. using the standard con- tent of a system request as your guide, prepare a list of questions that harry needs to have answered about this project.

Aproduction line has three machines a, b, and c, with reliabilities of .96, .86, and .85, respectively. the machines are arranged so that if one breaks down, the others must shut down. engineers are weighing two alternative designs for increasing the line’s reliability. plan 1 involves adding an identical backup line, and plan 2 involves providing a backup for each machine. in either case, three machines (a, b, and c) would be used with reliabilities equal to the original three. a. compute overall system reliability under plan 1. (round your intermediate calculations and final answer to 4 decimal places.) reliability b. compute overall system reliability under plan 2. (round your intermediate calculations and final answer to 4 decimal places.) reliability c. which plan will provide the higher reliability? plan2plan1