A random sample of 10 corn snacks of a particular brand has a mean MSG content of 8 milligrams with a standard deviation of 3.8 milligrams. Test the manufacturer's claim that the MSG content does not...

A random sample of 10 corn snacks of a particular brand has a mean MSG content of 8 milligrams with a standard deviation of 3.8 milligrams. Test the manufacturer's claim that the MSG content does not exceed 6.5 milligrams. Use 0.01 level of significance and assume that the distribution is approximately normal.