In this question regarding secondary data included in a marketing research report, the appropriate responses would be:
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sometimes necessary for a study - Secondary data can provide valuable insights and context that may be necessary for understanding the research question or for comparative analysis.
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only okay if the data is from a reputable supplier - Using secondary data from reputable sources is important to ensure the reliability and validity of the information presented in the report.
The other options, "usually intended to mislead a client" and "occasionally used by firms to show they have done more work than they have," are not appropriate responses, as they imply unethical practices that should not be associated with legitimate marketing research.
So, the correct selections are:
- sometimes necessary for a study
- only okay if the data is from a reputable supplier