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4. Plasma aldosterone has been related to blood-pressure levels in adults in some studies. In addition, there may be ethnic differences. There is less data available for children. In the Figure at the right, we present the distribution of plasma aldosterone for Caucasian children and African American children. The distributions are very skewed, and a nonparametric analysis is appropriate here. We have grouped the data for purposes of illustration as shown in Table 2. Table 2. Plasma Aldosterone levels in 53 Caucasian and 46 African American Children (Grouped data) Aldosterone group (pmol/l) Caucasian African American 0-199 200-399 400-599 >= 600 12 28 17 10 15 5 9 3 Plasma-aldosterone concentration (pmol/liter) 1100 1000 900 T ° 01200 ° 800 ° 700 600- 500- 400 300 200- 100 。。。。。。。 188 800 8008 so good 。。 P<0.001 a) What nonparametric test can be used to compare plasma aldosterone group between Caucasian and African American children? 00 Caucasians African Americans b) Perform the large sample version of the test mentioned in Problem a), and report a two- sided p-value. c) Perform a permutation test version for the test mentioned in Problem a), and report a two- sided p-value. d) How do the results in Problems b) and c) compare? e) What is your overall conclusion from your analysis of the data?

4. Plasma aldosterone has been related to blood-pressure levels in adults in some studies. In addition, there may be ethnic differences. There is less data available for children. In the Figure at the right, we present the distribution of plasma aldosterone for Caucasian children and African American children. The distributions are very skewed, and a nonparametric analysis is appropriate here. We have grouped the data for purposes of illustration as shown in Table 2. Table 2. Plasma Aldosterone levels in 53 Caucasian and 46 African American Children (Grouped data) Aldosterone group (pmol/l) Caucasian African American 0-199 200-399 400-599 >= 600 12 28 17 10 15 5 9 3 Plasma-aldosterone concentration (pmol/liter) 1100 1000 900 T ° 01200 ° 800 ° 700 600- 500- 400 300 200- 100 。。。。。。。 188 800 8008 so good 。。 P<0.001 a) What nonparametric test can be used to compare plasma aldosterone group between Caucasian and African American children? 00 Caucasians African Americans b) Perform the large sample version of the test mentioned in Problem a), and report a two- sided p-value. c) Perform a permutation test version for the test mentioned in Problem a), and report a two- sided p-value. d) How do the results in Problems b) and c) compare? e) What is your overall conclusion from your analysis of the data?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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4. Plasma aldosterone has been related to blood-pressure levels in adults in some studies. In addition, there may be ethnic differences. There is less data available for children. In the Figure at the right, we present the distribution of plasma aldosterone for Caucasian children and African American children. The distributions are very skewed, and a nonparametric analysis is appropriate here. We have grouped the data for purposes of illustration as shown in Table 2. Table 2. Plasma Aldosterone levels in 53 Caucasian and 46 African American Children (Grouped data) Aldosterone group (pmol/l) Caucasian African American 0-199 200-399 400-599 >= 600 12 28 17 10 15 5 9 3 Plasma-aldosterone concentration (pmol/liter) 1100 1000 900 T ° 01200 ° 800 ° 700 600- 500- 400 300 200- 100 。。。。。。。 188 800 8008 so good 。。 P<0.001 a) What nonparametric test can be used to compare plasma aldosterone group between Caucasian and African American children? 00 Caucasians African Americans b) Perform the large sample version of the test mentioned in Problem a), and report a two- sided p-value. c) Perform a permutation test version for the test mentioned in Problem a), and report a two- sided p-value. d) How do the results in Problems b) and c) compare? e) What is your overall conclusion from your analysis of the data?
Transcribed Image Text:4. Plasma aldosterone has been related to blood-pressure levels in adults in some studies. In addition, there may be ethnic differences. There is less data available for children. In the Figure at the right, we present the distribution of plasma aldosterone for Caucasian children and African American children. The distributions are very skewed, and a nonparametric analysis is appropriate here. We have grouped the data for purposes of illustration as shown in Table 2. Table 2. Plasma Aldosterone levels in 53 Caucasian and 46 African American Children (Grouped data) Aldosterone group (pmol/l) Caucasian African American 0-199 200-399 400-599 >= 600 12 28 17 10 15 5 9 3 Plasma-aldosterone concentration (pmol/liter) 1100 1000 900 T ° 01200 ° 800 ° 700 600- 500- 400 300 200- 100 。。。。。。。 188 800 8008 so good 。。 P<0.001 a) What nonparametric test can be used to compare plasma aldosterone group between Caucasian and African American children? 00 Caucasians African Americans b) Perform the large sample version of the test mentioned in Problem a), and report a two- sided p-value. c) Perform a permutation test version for the test mentioned in Problem a), and report a two- sided p-value. d) How do the results in Problems b) and c) compare? e) What is your overall conclusion from your analysis of the data?
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