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Business
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(Cooper Chapter 8, pg 15)
Cooper. (2003) Business research methods (8th ed.). New York: McGraw-Hill
Explain the concepts of validity and reliability of data
Samples are used to study characteristics of a population. Reasons for sampling:
* contacting entire population too time consuming
* too costly to study entire population
* physically impossible to count or check on all items
* destructive nature of tests (wine tasting example)
* sample results are adequate
Simple Random Sampling
- Each individual has probability of being chosen
- Used for Homogenous population
Stratified Simple Random Sampling
- Divide population into Strata; then conduct a simple random sample in each stratum
Systemic Random Sampling (for ordered pairs)
- Number each individual file = total of n
- To select N individuals K= N/n = sampling ration
- Choose random number
- Select every Kth individual
Cluster Sampling
- used for population that are widely dispersed geographically
- List clusters
- Census for those selected
( in class lecture August 2nd, Dr...
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Distinguish among what is knowable, unknowable, and researchabl
Coffee Time aims to expand their business into an emerging market- India. They need to know what cities to enter, the target market, and what is the expected revenue? To do the expansion right, a company must do their due diligence and know the market that they are about to penetrate...
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