How many standard deviations above the mean of the sampling

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Question: A bottle ?lling machine is designed so that when it is operating properly it ?lls bottles with a mean of 64 ounces and a standard deviation of 0.73 ounces. To test the machine to see if it is operating properly a QA specialist takes a sample of size 5. The sample mean is 64.3. Assuming the machine is operating properly, this sample average is how many standard deviations above the mean of the sampling average?

Reference no: EM133380917

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