Problem: Suppose you are a busy researcher and you do not have time to personally analyze all of the data you collect. So, you decide that you will hire a company to help analyze your data. Of course, you want to choose wisely, so you give each company a test. Each company (A, B, C) is asked to measure a sample of seeds that you have supplied. Four different lab technicians at each company will measure the same sample of seeds, which you know has a known mass of 1.002g. Company A Company B Company C 1.001 g 0.998 g 0.999 g 1.000 g 2.863 g 2.444 g 2.186 g 2.601 g 1.015 g 1.015 g 1.015 g 1.015 g Technician 1 Technician 2 Technician 3 Technician 4 In the space below, comment on both the accuracy and precision of the measurements made by the technicians at each company. Keep in mind that there are degrees of accuracy and precision; it is not an "all or nothing" concept. Also, do not limit the wording of your answers to those phrases from the previous page or simply say "it's good" or "it's bad." Qualify your answers. What should you look for when evaluating the accuracy of the companies? Which company was the: most accurate? 2nd most accurate? least accurate? What should you look for when evaluating the precision of the companies? Which company was the: most precise? 2nd most precise? least precise? Which company would you hire to analyze your data? Explain why. Metric System, Measurement Tools, and Data Collection 5th edition
Problem: Suppose you are a busy researcher and you do not have time to personally analyze all of the data you collect. So, you decide that you will hire a company to help analyze your data. Of course, you want to choose wisely, so you give each company a test. Each company (A, B, C) is asked to measure a sample of seeds that you have supplied. Four different lab technicians at each company will measure the same sample of seeds, which you know has a known mass of 1.002g. Company A Company B Company C 1.001 g 0.998 g 0.999 g 1.000 g 2.863 g 2.444 g 2.186 g 2.601 g 1.015 g 1.015 g 1.015 g 1.015 g Technician 1 Technician 2 Technician 3 Technician 4 In the space below, comment on both the accuracy and precision of the measurements made by the technicians at each company. Keep in mind that there are degrees of accuracy and precision; it is not an "all or nothing" concept. Also, do not limit the wording of your answers to those phrases from the previous page or simply say "it's good" or "it's bad." Qualify your answers. What should you look for when evaluating the accuracy of the companies? Which company was the: most accurate? 2nd most accurate? least accurate? What should you look for when evaluating the precision of the companies? Which company was the: most precise? 2nd most precise? least precise? Which company would you hire to analyze your data? Explain why. Metric System, Measurement Tools, and Data Collection 5th edition
Chapter1: Numerals And Fractions
Section: Chapter Questions
Problem 5PP
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Transcribed Image Text:Problem:
Suppose you are a busy researcher and you do not have time to personally analyze all of the data
you collect. So, you decide that you will hire a company to help analyze your data. Of course,
you want to choose wisely, so you give each company a test. Each company (A, B, C) is asked
to measure a sample of seeds that you have supplied. Four different lab technicians at each
company will measure the same sample of seeds, which you know has a known mass of 1.002g.
Company A
Company B
Company C
1.001 g
0.998 g
0.999 g
1.000 g
2.863 g
2.444 g
2.186 g
2.601 g
1.015 g
1.015 g
1.015 g
1.015 g
Technician 1
Technician 2
Technician 3
Technician 4
In the space below, comment on both the accuracy and precision of the measurements made by
the technicians at each company. Keep in mind that there are degrees of accuracy and precision;
it is not an "all or nothing" concept. Also, do not limit the wording of your answers to those
phrases from the previous page or simply say "it's good" or “it's bad." Qualify your answers.
What should you look for when evaluating the accuracy of the companies?
Which company was the: most accurate?
2nd most accurate?
least accurate?
What should you look for when evaluating the precision of the companies?
Which company was the: most precise?
2nd most precise?
least precise?
Which company would you hire to analyze your data? Explain why.
Metric System, Measurement Tools, and Data Collection
5th edition
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