Suppose a water utility company charges a residential customer $1.50 per 1,000 gallons for the first 30,000 gallons of water used and $1.00 per 1,000 gallons for any amounts used in excess of 30,000 gallons of water. the water utility is practicing:
a) first-degree price discrimination.
b) perfect price discrimination.
c) second-degree price discrimination.
d) third-degree price discrimination.

Case in point 1.2 suppose you work in the it department of global hotels, a multinational hotel chain. global hotels runs several specialized business support systems, including a guest reservations system that was developed in-house to meet the requirements of a large company with worldwide operations. guests can make one-stop online reservations by visiting global's website, which has links to all major travel industry sites. global hotels just acquired momma's, a regional chain of 20 motels in western canada. momma's uses a vertical reservations package suitable for small- to medium-sized businesses and a generic accounting and finance package. should momma's use global hotels' information systems or continue with its own? in your answer, consider issues such as business profiles, business processes, system interactivity, edi, ecommerce, and the characteristics of both information systems. what additional information would be to you in making a recommendation?

Reliability and validity reliability and validity are two important considerations that must be made with any type of data collection. reliability refers to the ability to consistently produce a given result. in the context of psychological research, this would mean that any instruments or tools used to collect data do so in consistent, reproducible ways. unfortunately, being consistent in measurement does not necessarily mean that you have measured something correctly. to illustrate this concept, consider a kitchen scale that would be used to measure the weight of cereal that you eat in the morning. if the scale is not properly calibrated, it may consistently under- or overestimate the amount of cereal that’s being measured. while the scale is highly reliable in producing consistent results (e.g., the same amount of cereal poured onto the scale produces the same reading each time), those results are incorrect. this is where validity comes into play. validity refers to the extent to which a given instrument or tool accurately measures what it’s supposed to measure. while any valid measure is by necessity reliable, the reverse is not necessarily true. researchers strive to use instruments that are both highly reliable and valid.

Warner inc. sells a high-speed retrieval system for mining information. it provides the following information for the year. budgeted actual overhead cost $965,700 $905,000 machine hours 58,570 49,200 direct labor hours 107,300 104,200 overhead is applied on the basis of direct labor hours. compute the predetermined overhead rate. predetermined overhead rate $ per direct labor hour link to text determine the amount of overhead applied for the year. the amount of overhead applied $