Google_classroom_BBDT2023L08 - BBDT3213 Applied Marketing...

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Slide: 1/34 BBDT3213 BBDT3213 Applied Marketing Applied Marketing Research Research Additional _notes for Google classroom SAMPLING AND DATA COLLECTION
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Slide: 2/34 What is the Appropriate Sample What is the Appropriate Sample Design? Design? Degree of accuracy Resources Time Advanced knowledge of the population National versus local Need for statistical analysis
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Slide: 3/34 Internet Sampling is Unique Internet Sampling is Unique Internet surveys allow researchers to rapidly reach a large sample. Speed is both an advantage and a disadvantage. Sample size requirements can be met overnight or almost instantaneously. Survey should be kept open long enough so all sample units can participate.
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Slide: 4/34 Internet Sampling Internet Sampling Major disadvantage lack of computer ownership and Internet access among certain segments of the population Yet Internet samples may be representative of a target populations. target population - visitors to a particular Web site. Hard to reach subjects may participate
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Slide: 5/34 After the Sample Design is After the Sample Design is Selected Selected Determine sample size Select actual sample units Conduct fieldwork
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Slide: 6/34 The Normal Distribution The Normal Distribution Normal curve Bell shaped Almost all of its values are within plus or minus 3 standard deviations I.Q. is an example
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Slide: 7/34 Statistical Impact of Sample Size Statistical Impact of Sample Size Normal Population Distribution Extracted from Business Research Methods – Willaim G. Zikmund
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Slide: 8/34 34.13% 34.13% 13.59% 13.59% 2.14% 2.14% Normal Distribution Normal Distribution
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