Answer ie of the following questions each of which carries 5 marks. a) Questionnaire results are obtained from initial responses, after a reminder e-mail and also after a final reminder. Suggest how you might gain some insight into whether non-response error could be an issue for this survey. b) You are asked to conduct an initial investigation into the characteristics of people who own reptiles as pets. Your report needs to provide only a rough profile of the consumers concerned. Which sampling method might be best in this case? Briefly, justify your choice. c) If you were surveying amateur football players over the South West UK region about their weekly expenditure on energy drinks, describe a suitable sampling technique for this task. Only a fairly accurate estimate is required, and your survey budget is quite limited

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