A researcher knows from experience the average costs of various data collection alternatives:
Data Collection Method Cost/respondent
Personal Interview..... $50
Telephone Interview..... $25
Mail Survey ........ $00 .50 (per mailing)
If $2,500 is allocated in the research budget for data collection, what are the levels of accuracy for the sample sizes allowable for each data collection method? Based on your findings, comment on the inappropriateness of using cost as the only means of determining sample size.