The Analysis of Biological Data
2nd Edition
ISBN: 9781936221486
Author: Michael C. Whitlock, Dolph Schluter
Publisher: W. H. Freeman
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Chapter 1, Problem 21AP
To determine
To explain:To determine whether the,
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The authors of a paper randomly selected two samples of patients admitted to the hospital after suffering a stroke. One sample was selected from patients who received biofeedback weight training for 8 weeks, and the other sample was selected from patients who did not receive this training. At the end of 8 weeks, the time it took (in seconds) to stand from a sitting position and then to sit down again (called sit-stand-sit time) was measured for the people in each sample. Data consistent with summary quantities given in the paper are given below. For purposes of this exercise, you can assume that the samples are representative of the population of stroke patients who receive the biofeedback training and the population of stroke patients who do not receive this training.
Biofeedback Group
2.2
2.9
4.6
2.4
3.0
4.4
3.5
4.3
3.5
3.8
3.1
3.8
3.8
2.6
3.4
No Biofeedback Group
5.2
4.8
4.0
4.3
4.8
4.4
4.3
5.2
3.5
4.3
5.2
4.5
4.1
3.5
4.0
Conduct a test of hypothesis to test whether…
The authors of a paper randomly selected two samples of patients admitted to the hospital after suffering a stroke. One sample was selected from patients who received biofeedback weight training for 8 weeks, and the other sample was selected from patients who did not receive this training. At the end of 8 weeks, the time it took (in seconds) to stand from a sitting position and then to sit down again (called sit-stand-sit time) was measured for the people in each sample. Data consistent with summary quantities given in the paper are given below. For purposes of this exercise, you can assume that the samples are representative of the population of stroke patients who receive the biofeedback training and the population of stroke patients who do not receive this training.
Biofeedback Group
2.1
2.8
4.5
2.3
2.9
4.3
3.4
4.2
3.4
3.7
3.0
3.7
3.7
2.5
3.3
No Biofeedback Group
5.2
4.8
4.0
4.3
4.8
4.4
4.3
5.2
3.5
4.3
5.2
4.5
4.1
3.5
4.0
Conduct a test of hypothesis to test whether…
A study was conducted to examine the effect of diet cola consumption on calcium levels in women. A sample of 16 healthy women
aged 18 to 40 were randomly assigned to drink 24 ounces of either diet cola or water. Their urine was collected for three hours after
ingestion of the beverage and calcium excretion (in mg) was measured. The data are stored in ColaCalcium.
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The Analysis of Biological Data
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