What is the probability of a sample average

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A gallon of milk should have 128 ounces. A dairy fills milk containers using a process that is normally distributed with a mean of 128 ounces and a standard deviation of 2 ounces. A random sample of 30 containers is taken. What is the probability of a sample average less than 127 ounces?(Round your answer to 3 decimal places; for example; 0.123)

Reference no: EM132848658

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