Mathematics, 25.11.2019 22:31 kovicicic

Asample of 20 cigarettes is tested to determine nicotine content and the average value observed was 1.2 mg. compute a 99 percent two-sided confidence interval for the mean nicotine content of a cigarette if it is known that the standard deviation of a cigarette’s nicotine content is σ = .2 mg.

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Asample of 20 cigarettes is tested to determine nicotine content and the average value observed was...