Mercury in Sushi A Food and Drug Administration (FDA) 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 New York City. The study was sponsored by the New York Times, and the stores (in order) are D’Agostino, Eli’s Manhattan, Fairway, Food Emporium, Gourmet Garage, Grace’s Marketplace, and Whole Foods. Construct a 98% confidence interval estimate of the mean amount of mercury in the population. Given that the FDA guideline is that fish should have a maximum of 1 ppm of mercury, what does the confidence interval suggest?

0.56 0.75 0.10 0.95 1.25 0.54 0.88