To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine found in all commercial brands of cigarettes. A new cigarette has recently been marketed. The FDA tests on this cigarette yielded a mean nicotine content of $26.2$ milligrams and standard deviation of $2.9$ milligrams for a sample of $n = 95$ cigarettes. Find a $95 \%$ confidence interval for $\mu$.

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The Answer of To help consumers assess the risks they are taking, the Food and Drug Administration (FDA) publishes the amount of nicotine found in all commercial brands of cigarettes. A new cigarette has recently been marketed. The FDA tests on this cigarette yielded a mean nicotine content of $26.2$ milligrams and standard deviation of $2.9$ milligrams for a sample of $n = 95$ cigarettes. Find a $95 \%$ confidence interval for $\mu$.

To Help Consumers Assess the Risks They Are Taking, the Food