Question: Listed below are the amounts of mercury in parts per
Listed below are the amounts of mercury (in parts per million, or 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. The sample mean is 0.719ppm and the standard deviation is 0.366ppm. Construct a 90% confidence interval estimate of the mean amount of mercury in the population.
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