1. Maket Research
... problems, plan programmes and evaluate performance. Such data can be obtained from: - Service records Sales records Warranty claims Sales volumes Sales revenues Quality reports Delivery records Etc. Internal databases have the advantages of availability and no cost involved but they may also have disadvantages such as the information maybe incomplete where data is concerned with specific areas, ... sampling procedure). o The following table shows the different kinds of samples. Probability samples are more accurate and have a known error level, but may be costly. In this case non-probabi...
- Word Count: 2825
- Approx Pages: 11
- Grade Level: Undergraduate