Question: 1. Do you agree that drawing a second sample was a good idea? 2. Do you agree that the follow-up mailings were a good idea?

1. Do you agree that drawing a second sample was a good idea?
2. Do you agree that the follow-up mailings were a good idea?
3. How might you explain differences among averages in the results?
4. Are there useful results here? Which ones are useful? Are they sufficient, or is further study needed?

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1 Its not entirely clear that this was a good idea and it may well have been unnecessary There are several issues here a While its usually better to h... View full answer

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