Question

A food safety guideline is that the mercury in fish should be below one part per million (ppm). listed below are the amounts of mercury (ppm) found in tuna fish sampled at different stores in a major city. Construct a 95% confidence interval estimate of the mean amount of mercury in the population. Does it appear that there is too much mercury in tuna fish?

0.53 0.81 0.09 0.89 1.35 0.59 0.88

First, find the confidence interval estimate of the population mean.

___ ppm<__<___ppm

Then, use the information to draw an appropriate conclusion about whether there could be too much mercury in tuna sushi.

Answer 1