SOLUTION: 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 dif
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Question 1162161: 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?
0.58 0.72 0.09 0.95 1.36 0.55 0.84
What is the confidence interval estimate of the population mean mu?
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
The mean of these values is 0.727 ppm with s=0.392 ppm
The half-interval for 99%CI is t df=6 0.995*s/sqrt (n), and t=3.707
the interval then is 0.549
the CI is then mean +/- that or (0.178, 1.276) units ppm. Because 1 ppm is in the interval one may conclude that there is too much mercury in the sushi
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