When calculating sample size, how can a researcher decide on the level of accuracy to use? What about level of confidence? What about variability with a percentage?
Answer to relevant QuestionsUsing the formulas provided in your text, determine the approximate sample sizes for each of the following cases, all with precision (allowable error) of ±5%: a. Variability of 30%, confidence level of 95% b. Variability of ...1. With a desired final sample size of 250 for each region, what is the lowest total number of telephone numbers that should be purchased for each region? 2. With a desired final sample size of 250 for each region, what is ...How do you define a “completion,” and how does this definition help a researcher deal with incomplete questionnaires? 1. Take the role of the marketing research projects director and draft all of the interviewer controls you believe are necessary to effect data collection comparable in quality to that gathered by a professional telephone ...Here are several computation practice exercises to help you identify which formulas pertain and learn how to perform the necessary calculations. In each case, perform the necessary calculations and write your answers in the ...
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