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An automated machine serves hot chocolate cups. The nominal volume of each hot chocolate cup is 300 ml, with a standard deviation of 24.3 ml.
An automated machine serves hot chocolate cups. The nominal volume of each hot chocolate cup is 300 ml, with a standard deviation of 24.3 ml. A technician samples 23 cups and nds a sample mean volume of 312.56 ml. What is the corresponding z-score for the difference between sample mean volume and nominal volume, rounded to 2 decimal places
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