soft drink filling machine, when in perfect adjustment, fills the bottles with 16 ounces of soft drink. A random sample of 60 bottles is selected, and the contents are measured.  The sample yielded a mean content of 15.74 ounces with a standard deviation of 1.25 ounces.  With a .05 level of significance, test to see if the machine is in perfect adjustment.

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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  1. A soft drink filling machine, when in perfect adjustment, fills the bottles with 16 ounces of soft drink. A random sample of 60 bottles is selected, and the contents are measured.  The sample yielded a mean content of 15.74 ounces with a standard deviation of 1.25 ounces.  With a .05 level of significance, test to see if the machine is in perfect adjustment. 
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