An ecological group suspects lobsters are consuming dangerous levels of mercury in a region of the world. Dangerous levels of mercury are classified when they reach beyond 6.5 parts per million. A random sample of 25 lobsters region were tested and the data shown in the stemplot. Mercury Levels 2 24 2 3 14 3 58 4 02 4 56 5 5 689 6 34 6 7 12 7 01334 678 Key: 212= 2.2 parts per million Part A: What proportion of the lobsters in the sample have dangerous levels of mercury in their systems? Part B: Construct and interpret a 95% confidence interval for the mean mercury levels of the lobsters if the sample of 25 lobsters has a mean mercury level of 5.05 parts per million and standard deviation of 1.45 parts per million.
An ecological group suspects lobsters are consuming dangerous levels of mercury in a region of the world. Dangerous levels of mercury are classified when they reach beyond 6.5 parts per million. A random sample of 25 lobsters region were tested and the data shown in the stemplot. Mercury Levels 2 24 2 3 14 3 58 4 02 4 56 5 5 689 6 34 6 7 12 7 01334 678 Key: 212= 2.2 parts per million Part A: What proportion of the lobsters in the sample have dangerous levels of mercury in their systems? Part B: Construct and interpret a 95% confidence interval for the mean mercury levels of the lobsters if the sample of 25 lobsters has a mean mercury level of 5.05 parts per million and standard deviation of 1.45 parts per million.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 10CYU
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![An ecological group suspects lobsters are consuming dangerous levels of mercury in a region of the world. Dangerous levels of mercury are classified when they reach beyond 6.5 parts per million. A random sample of 25 lobsters in the
region were tested and the data is shown in the stemplot.
Mercury Levels
2 24
2
3 14
3 58
402
4 56
5
5 689
6 34
6 678
7 12
01334
Key: 212 = 2.2 parts per million
Part A: What proportion of the lobsters in the sample have dangerous levels of mercury in their systems?
Part B: Construct and interpret a 95% confidence interval for the mean mercury levels of the lobsters if the sample of 25 lobsters has a mean mercury level of 5.05 parts per million and standard deviation of 1.45 parts per million.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F9459fbbc-4853-45b5-8c0e-458b75bc654a%2F66fcd30d-488a-4508-9359-6746bd277da9%2Flsft7bd_processed.png&w=3840&q=75)
Transcribed Image Text:An ecological group suspects lobsters are consuming dangerous levels of mercury in a region of the world. Dangerous levels of mercury are classified when they reach beyond 6.5 parts per million. A random sample of 25 lobsters in the
region were tested and the data is shown in the stemplot.
Mercury Levels
2 24
2
3 14
3 58
402
4 56
5
5 689
6 34
6 678
7 12
01334
Key: 212 = 2.2 parts per million
Part A: What proportion of the lobsters in the sample have dangerous levels of mercury in their systems?
Part B: Construct and interpret a 95% confidence interval for the mean mercury levels of the lobsters if the sample of 25 lobsters has a mean mercury level of 5.05 parts per million and standard deviation of 1.45 parts per million.
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