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1. The owner of a specialty coffee shop wants to study coffee purchasing habits of customers...

1. The owner of a specialty coffee shop wants to study coffee purchasing habits of customers of her shop. She selects a random sample of 60 customers during a certain week, with the following results.

                         _

Amount spent:  X  = $7.25,  S = $1.75

31 customers say they “definitely will” recommend the specialty coffee shop to family and friends.

  1. At the .10 level of significance, is there evidence that more than 50% of all her customers “definitely will” recommend the specialty coffee shop to family and friends.
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