请根据之前的讨论成果，设计完整的调查方案。要求：附件上传。
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请根据实训体会，反思：如何才能设计出一份高质量的调查问卷，以及需要具体哪些职业素养？
which of the following demand forecast is more likely to be accurate?
A. Forecast for demand of 12,000 personal computers in the next year
B. Forecast for demand of 1,000 personal computers in the next month
Time-series models are used in
A. quantiative forecating
B. qualitative forecasting
C. pyramid forecasting
D. associative forecasting
Which of the following correctly identifies an effect of using moving average forecast?
A moving average generally takes trends into account
B. A moving average forecast is always more accurate than a forecast using naive method
C. A moving average forecast smooths out random variations
D. Moving average don't require complex calculations or burdensome record keeping
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