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In your work, assume the 5% significance level. A blood sample was conducted on 56 police officers subjected to constant inhalation of automobile exhaust fumes while working traffic enforcement in a urban environment. | Researchers found that the blood samples of these officers had an average lead concentration of 122.12 µg/l and a SD of 36.64 µg/l; a previous study of individuals from a nearby suburb, with no history of exposure, found an average blood level concentration of 33 µg/1.9 (a) Write down the hypotheses that would be appropriate for testing if the police officers appear to have been exposed to a different concentration of lead. (b) Explicitly state and check all conditions necessary for inference on these data. (c) Regardless of your answers in part (b), also test the hypothesis 'the downtown police officers might have a higher lead exposure than the group in the previous study'. Interpret your results in context. • Calculate the T-statistics Calculate the degree of freedom Given the p-value of 0.025, provide a conclusion to the hypothesis test

In your work, assume the 5% significance level. A blood sample was conducted on 56 police officers subjected to constant inhalation of automobile exhaust fumes while working traffic enforcement in a urban environment. | Researchers found that the blood samples of these officers had an average lead concentration of 122.12 µg/l and a SD of 36.64 µg/l; a previous study of individuals from a nearby suburb, with no history of exposure, found an average blood level concentration of 33 µg/1.9 (a) Write down the hypotheses that would be appropriate for testing if the police officers appear to have been exposed to a different concentration of lead. (b) Explicitly state and check all conditions necessary for inference on these data. (c) Regardless of your answers in part (b), also test the hypothesis 'the downtown police officers might have a higher lead exposure than the group in the previous study'. Interpret your results in context. • Calculate the T-statistics Calculate the degree of freedom Given the p-value of 0.025, provide a conclusion to the hypothesis test

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter4: Writing Linear Equations
Section: Chapter Questions
Problem 14CR
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Question 1: In your work, assume the 5% significance level. A blood sample was conducted on 56 police officers subjected to constant inhalation of automobile exhaust fumes while working traffic enforcement in a urban environment. | Researchers found that the blood samples of these officers had an average lead concentration of 122.12 µg/l and a SD of 36.64 µg/l; a previous study of individuals from a nearby suburb, with no history of exposure, found an average blood level concentration of 33 µg/1.9 (a) Write down the hypotheses that would be appropriate for testing if the police officers appear to have been exposed to a different concentration of lead. (b) Explicitly state and check all conditions necessary for inference on these data. (c) Regardless of your answers in part (b), also test the hypothesis 'the downtown police officers might have a higher lead exposure than the group in the previous study'. Interpret your results in context. Calculate the T-statistics Calculate the degree of freedom o Given the p-value of 0.025, provide a conclusion to the hypothesis test
Transcribed Image Text:Question 1: In your work, assume the 5% significance level. A blood sample was conducted on 56 police officers subjected to constant inhalation of automobile exhaust fumes while working traffic enforcement in a urban environment. | Researchers found that the blood samples of these officers had an average lead concentration of 122.12 µg/l and a SD of 36.64 µg/l; a previous study of individuals from a nearby suburb, with no history of exposure, found an average blood level concentration of 33 µg/1.9 (a) Write down the hypotheses that would be appropriate for testing if the police officers appear to have been exposed to a different concentration of lead. (b) Explicitly state and check all conditions necessary for inference on these data. (c) Regardless of your answers in part (b), also test the hypothesis 'the downtown police officers might have a higher lead exposure than the group in the previous study'. Interpret your results in context. Calculate the T-statistics Calculate the degree of freedom o Given the p-value of 0.025, provide a conclusion to the hypothesis test
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