Information and data collection methods Primary data (primary data) is data that is returned by the query, from the consumer groups, for example, that fresh Coffee coffee shop staff and World number 246, for example in Chiang Mai. The sampling method used by hospitality (convenience sampling).Population and the sampling method. The population used in this research is a group of consumers of coffee in a coffee shop to Coffee World in Chiang Mai from sampling. Use the sampling method based on the convenient (convenience sampling) 246 examples.Tools used in the study.Given a sample, using the formula of Cochran at the level of confidence is 95 per cent and the proportion of the population of interest is equal to 0.8.The formula used to calculate
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