Which type of interview technique offers the advantages of cost, quality and speed?
A) telephone interview
B) in-office interview
C) mall-intercept interview
D) in-home interview
E) dual data collection
A
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A new shopping mall is considering setting up an information desk operated by two employees. Based on information obtained from similar information desks, it is believed that people will arrive at the desk at the rate of 20 per hour
It takes an average of 4 minutes to answer a question. It is assumed that arrivals are Poisson and answer times are exponentially distributed. (a) Find the proportion of the time that the employees are busy. (b) Find the average number of people waiting in line to get some information. (c) Find the expected time a person spends just waiting in line to have his question answered.
Application software maintenance, new software and hardware leases, and incremental communications are examples of:
A) recurring costs. B) one-time costs. C) incremental costs. D) frequent costs. E) consumable costs.