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Starbucks serves coffee at a mean temperature of 170 F. A sample of 16 12-ounce cups of coffee from Starbucks have a mean temperature of

Starbucks serves coffee at a mean temperature of 170 F. A sample of 16 12-ounce cups of coffee from Starbucks have a mean temperature of 167 F with a standard deviation of 5 F. Does this sample provide evidence that the mean coffee temperature at Starbucks is different from 170 F?

Determine the value of the appropriate test statistic (rounded to 2 decimal places).

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