MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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![A food safety guideline suggests that 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 98% confidence interval estimate of the mean amount of mercury in the population. Does it appear that there is too much mercury in tuna sushi?
Mercury levels (ppm): 0.58, 0.74, 0.10, 0.89, 1.25, 0.52, 0.80
**What is the confidence interval estimate of the population mean μ?**
\[ \_ \, \text{ppm} < \mu < \_ \, \text{ppm} \]
*(Round to three decimal places as needed.)*
**Does it appear that there is too much mercury in tuna sushi?**
- **A.** No, because it is possible that the mean is not greater than 1 ppm. Also, at least one of the sample values is less than 1 ppm, so at least some of the fish are safe.
- **B.** Yes, because it is possible that the mean is not greater than 1 ppm. Also, at least one of the sample values exceeds 1 ppm, so at least some of the fish have too much mercury.
- **C.** No, because it is not possible that the mean is greater than 1 ppm. Also, at least one of the sample values is less than 1 ppm, so at least some of the fish are safe.
- **D.** Yes, because it is possible that the mean is greater than 1 ppm. Also, at least one of the sample values exceeds 1 ppm, so at least some of the fish have too much mercury.](https://content.bartleby.com/qna-images/question/a951095b-8fe2-4ec9-81e0-5c7669f4ee38/2c0160b8-9b45-42eb-9395-a7bfdde2a0f3/3mjyokw_processed.jpeg)
Transcribed Image Text:A food safety guideline suggests that 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 98% confidence interval estimate of the mean amount of mercury in the population. Does it appear that there is too much mercury in tuna sushi?
Mercury levels (ppm): 0.58, 0.74, 0.10, 0.89, 1.25, 0.52, 0.80
**What is the confidence interval estimate of the population mean μ?**
\[ \_ \, \text{ppm} < \mu < \_ \, \text{ppm} \]
*(Round to three decimal places as needed.)*
**Does it appear that there is too much mercury in tuna sushi?**
- **A.** No, because it is possible that the mean is not greater than 1 ppm. Also, at least one of the sample values is less than 1 ppm, so at least some of the fish are safe.
- **B.** Yes, because it is possible that the mean is not greater than 1 ppm. Also, at least one of the sample values exceeds 1 ppm, so at least some of the fish have too much mercury.
- **C.** No, because it is not possible that the mean is greater than 1 ppm. Also, at least one of the sample values is less than 1 ppm, so at least some of the fish are safe.
- **D.** Yes, because it is possible that the mean is greater than 1 ppm. Also, at least one of the sample values exceeds 1 ppm, so at least some of the fish have too much mercury.
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