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Convenience Sampling - A convenience sample is a group of individuals who are readily available to participate in a study. That is, the choice of the sample is left completely to the convenience of the investigator. The cost involve in picking up the sample is minimum and the cost of data collection is also generally low. For example, the investigator wants to study the demand for the types of soft drinks. The interviewer can go to some soft drinks shop and can interview shopkeepers who happens to come to that particular shop and ask them questions regarding their choice for soft drinks. Convenience sample suffers from excessive bias from known and unknown source and also there is no way that the possible errors can be quantified. It is good for taking a quick opinion poll developing tools such as questionnaire or interview schedule and for preliminary study before developing an elaborate research proposal.
Just-in-Time Inventory Management This is an approach to dealing with materials inventories that emphasizes the elimination of all waste and the continual improvement of t
DOCUMENT SELECTION: You have seen that acquisition work includes three distinct phases of activities. Document selection is the first phase. There are two aspects in document
Need for Several Entries A library catalogue can just meet any one type of user's approach like author approach, title approach, etc. We can also prepare catalogues, which ca
The areas to be considered while monitoring and controlling a contract are wide spread. They are: P h y sical mobilisation: In this stage, the contractor gathers people, m
Question: Forces for change exist in the external and the internal environments of the organisation. (a) Differentiate between planned change and unplanned change. (b)
Question 1 Describe the external features of the heart. Add a note on circulation of blood within the heart 2 Discuss the major joints of thorax and pelvis 3 Explain the
Keiretsu This is a Corporate conglomerates whose members are cooperate with each other for strategic purposes within the international business environment; a Japanese term.
VALUE-ADDED INFORMATION SERVICES ' Value-added' is a term now widely and increasingly used in the context of information systems and services. It is however a highly nebulous
QUESTION Refer to the table annexed which shows a summary the selection process at Toyota USA. This process lasts for about 20 hours and involves six phases spread over a span
Fiction: Fiction needs most careful consideration in view of heavy demand and use and its ephemeral nature. Still its heavy use may prompt librarians to decide on binding, b
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