Compute a 99 percent two-sided confidence interval

Reference no: EM13902107

A sample 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.

Reference no: EM13902107

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