TAILIEUCHUNG - Lecture Marketing research (10th edition): Chapter 14 - McDaniel, Gates

Chapter 14 - Sample size determination. This chapter include objectives: Gain an appreciation of a normal distribution; understand population, sample, and sampling distributions; understand how to compute the sampling distribution of the mean;. | Chapter Fourteen 14-1 Census: Population canvas - not really a “sample” Asking the entire population Budget Available: A valid factor – how much can we afford? Rule of Thumb: Is there some convention we can apply? What might make an adequate sample size? Sample Size for Probability Sampling 14-2 Key Terms & Definitions You might want to mention that the budget includes time as well as money, and some sample sizes and methods take longer than others to complete. Number of Subgroups Analyzed: In any sample size determination problem, consideration must be given to the number and anticipated size of various subgroups of the total sample that must be analyzed. Traditional Statistical Methods: Variance, standard deviation, and confidence interval play a key role. Sample Size for Probability Sampling 14-3 Key Terms & Definitions The professor might want to give an example or two of how the number of sub-groups affects sample size. You might want to include the incident rate of a .

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• Sample size determination
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• Normal distribution
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