Originally, I wanted to use random stratified sampling for my survey involving an automotive industry. The sample is based on the value chain comprising of manufacturing, sales, quality finance and HR. The composition of the respondents follows the percentage breakdown of the population. I did not have problems with sampling during the pilot but during the main survey, there were a number of organizational changes that resulting in poor response from the sales division with only less than 5 respondents out of a target 150 respondents. What should I do? I am consideringremoving the sales division and focusing on the balance and considering focusing the study on the supply chain. Alternatively, could I use all respondents minus sales but still consider the survey to be on the automotive industry? Any other suggestions?

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