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To evaluate customer satisfaction, a grocery store gives double coupons to anyone who completes a survey as they enter the store. The store manager determines that customers are very satisfied with their
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To evaluate customer satisfaction, a grocery store gives double coupons to anyone who completes a survey as they enter the store. The store manager determines that customers are very satisfied with their shopping experience in his store.

User Tidy
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Answer: The conclusion is not valid. This is a biased sample since a reward was given. This is a voluntary response sample.

Explanation:

User Ecuador
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