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3. The citizens decide to retest the water and obtain a new average of 11.2 +/- 0.2 micrograms per liter; they again argue for action. Write a brief statement about accuracy and precision that best describes this new data reported by the concerned citizens. 4. Suppose the water board rejected the citizens revised arsenic readings (11.2 +/- 0.2 µg/l) because they were not the official readings. A. Circle which characteristic of poor/bad science most applies? (Bad science: attacks the scientist, misuses authority, confuses cause and effect, poor statistics) OR Circle which characteristic of good science has been violated: tentative, testable/tested, empirical - uses data/observations, natural explanation. B. Explain how that applies:

3. The citizens decide to retest the water and obtain a new average of 11.2 +/- 0.2 micrograms per liter; they again argue for action. Write a brief statement about accuracy and precision that best describes this new data reported by the concerned citizens. 4. Suppose the water board rejected the citizens revised arsenic readings (11.2 +/- 0.2 µg/l) because they were not the official readings. A. Circle which characteristic of poor/bad science most applies? (Bad science: attacks the scientist, misuses authority, confuses cause and effect, poor statistics) OR Circle which characteristic of good science has been violated: tentative, testable/tested, empirical - uses data/observations, natural explanation. B. Explain how that applies:

Applications and Investigations in Earth Science (9th Edition)
Applications and Investigations in Earth Science (9th Edition)
9th Edition
ISBN:9780134746241
Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Publisher:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
Chapter1: The Study Of Minerals
Section: Chapter Questions
Problem 1LR
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I need help with these question stions use the following data provided to answer questions
samples? 3. The citizens decide to retest the water and obtain a new average of 11.2 +/- 0.2 micrograms per liter; they again argue for action. Write a brief statement about accuracy and precision that best describes this new data reported by the concerned citizens. 4. Suppose the water board rejected the citizens revised arsenic readings (11.2 +/- 0.2 µg/l) because they were not the official readings. A. Circle which characteristic of poor/bad science most applies? (Bad science: attacks the scientist, misuses authority, confuses cause and effect, poor statistics) OR Circle which characteristic of good science has been violated: tentative, testable/tested, empirical - uses data/observations, natural explanation. B. Explain how that applies: 3 Edited from D. Steer, The Good Earth. Also created by K. Sasowsky (Sup. Ex.3, 7, 6a, parts of Sup. Ex. A&B, part, 24, 25, 38, Sup. Alt. Energy 1 and 2, Sup. Switch the Energy Project Discussion Questions); copyrights retained by authors, 2021.
Transcribed Image Text:samples? 3. The citizens decide to retest the water and obtain a new average of 11.2 +/- 0.2 micrograms per liter; they again argue for action. Write a brief statement about accuracy and precision that best describes this new data reported by the concerned citizens. 4. Suppose the water board rejected the citizens revised arsenic readings (11.2 +/- 0.2 µg/l) because they were not the official readings. A. Circle which characteristic of poor/bad science most applies? (Bad science: attacks the scientist, misuses authority, confuses cause and effect, poor statistics) OR Circle which characteristic of good science has been violated: tentative, testable/tested, empirical - uses data/observations, natural explanation. B. Explain how that applies: 3 Edited from D. Steer, The Good Earth. Also created by K. Sasowsky (Sup. Ex.3, 7, 6a, parts of Sup. Ex. A&B, part, 24, 25, 38, Sup. Alt. Energy 1 and 2, Sup. Switch the Energy Project Discussion Questions); copyrights retained by authors, 2021.
Earth SUPPLEMENTAL EXERCISES - ESCI 103L - Cuyahoga Community College Water Quality - Accuracy and Precision Exer. 2 (1 p.) Name (Last, First) Adrian Fernandez ntroduction: A group of concerned citizens was worried that their local water supply might be contaminated with naturally occurring arsenic after seeing a map displayed showing they lived in an area of high arsenic concentrations. They decided to test water from 4 wells in their local area; each well was sampled and tested 4 different times. After analyzing the data (below), the citizens wrote a letter to the editor of a local newspaper arguing that their data proved that the water supply exceeded the maximum permitted level of arsenic in water supplies (10 micro-grams per liter). They demanded immediate government action to address the problem. The local water board tested the same water the same number of times and found average concentrations of 8.1 +/- 0.2 micrograms per liter (+/- refers to the "precision", or how much variability there is). Assume the water board's reported measurements are the true value ("accurate"). Sample 1 Sample 2 Sample 3 Sample 4 Average 14.0 7.0 12.0 8.0 18.0 10.0 16.0 14.0 23.0 5.0 3.0 19.0 7.0 21.0 7.0 21.0 Average Concentrations in micro-grams per liter Well 1 2 3 4 10.3 14.5 12.5 14.0 12.8
Transcribed Image Text:Earth SUPPLEMENTAL EXERCISES - ESCI 103L - Cuyahoga Community College Water Quality - Accuracy and Precision Exer. 2 (1 p.) Name (Last, First) Adrian Fernandez ntroduction: A group of concerned citizens was worried that their local water supply might be contaminated with naturally occurring arsenic after seeing a map displayed showing they lived in an area of high arsenic concentrations. They decided to test water from 4 wells in their local area; each well was sampled and tested 4 different times. After analyzing the data (below), the citizens wrote a letter to the editor of a local newspaper arguing that their data proved that the water supply exceeded the maximum permitted level of arsenic in water supplies (10 micro-grams per liter). They demanded immediate government action to address the problem. The local water board tested the same water the same number of times and found average concentrations of 8.1 +/- 0.2 micrograms per liter (+/- refers to the "precision", or how much variability there is). Assume the water board's reported measurements are the true value ("accurate"). Sample 1 Sample 2 Sample 3 Sample 4 Average 14.0 7.0 12.0 8.0 18.0 10.0 16.0 14.0 23.0 5.0 3.0 19.0 7.0 21.0 7.0 21.0 Average Concentrations in micro-grams per liter Well 1 2 3 4 10.3 14.5 12.5 14.0 12.8
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