Starbucks customers are complaining that a small cup of coffee at a local Starbucks coffee shop does not contain as much

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answerhappygod
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Starbucks customers are complaining that a small cup of coffee at a local Starbucks coffee shop does not contain as much

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Starbucks customers are complaining that a small cup of coffeeat a local Starbucks coffee shop does not contain as much coffee asit should (i.e., it contains less coffee than advertised). Onaverage, Starbucks claims that a small cup of coffee contains 360grams of coffee. The customers decide to order 20 cups of coffee atrandom times; on average their cups contained 356 grams, and astandard deviation of 9 grams. What is the critical value for thetest using 𝛼 = .05?
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