Mathematics, 08.04.2021 14:00 treyceratops1082
A random sample of 8 cigarettes of a certain brand has an average nicotine content of 4.2 milligrams and a standard deviation of 1.4 milligrams. Is this in line with the manufacturer’s claim that the average nicotine content does not exceed 3.5 mg? Use a 0.01 level of significance and assume the distribution of nicotine contents to be normal.
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A random sample of 8 cigarettes of a certain brand has an average nicotine content of 4.2 milligrams...
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