A food safety guideline is that the mercury in fish should be below 1 part per million​ (ppm). Listed below are the amounts of mercury​ (ppm) found in tuna sushi sampled at different stores in a major city. Construct a 99​% confidence interval estimate of the mean amount of mercury in the population. Does it appear that there is too much mercury in tuna​ sushi?   0.54   0.83   0.09   0.93   1.36   0.57   0.85      What is the confidence interval estimate of the population mean?

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A: The detailed solution is as follows below: