Fundamentals of Biostatistics
8th Edition
ISBN: 9781305268920
Author: Bernard Rosner
Publisher: Cengage Learning
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Chapter 12, Problem 7P
Pulmonary Disease
Twenty-two young asthmatic volunteers were studied to assess the short-term effects of sulfur dioxide (SO2) exposure under various conditions [12]. The baseline data in Table 12.30 were presented regarding bronchial reactivity to SO2 stratified by lung
Compare the means of each pair of groups using the LSD method.
Table 12.30 Relationship of bronchial reactivity to SO2 (cm H2O/s) grouped by lung function at screening among 22 asthmatic volunteers
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A deficiency of the trace element selenium in the diet can negatively impact growth, immunity, muscle and neuromuscular function, and fertility. The introduction of selenium supplements to dairy cows is justified when pastures have low selenium levels. Authors of a research paper supplied the following data on milk selenium concentration (mg/L) for a sample of cows given a selenium supplement (the treatment group) and a control sample given no supplement, both initially and after a 9-day period.
Initial Measurement
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11.4
9.1
9.6
8.7
10.1
9.7
8.5
10.8
10.2
10.9
10.6
10.6
11.9
10.1
9.9
12.3
10.7
8.8
10.2
10.4
10.3
10.9
11.4
10.4
9.3
11.6
10.6
10.9
10.9
8.3
After 9 Days
Treatment
Control
138.3
9.2
104
8.9
96.4
8.9
89
10.1
88
9.6
103.8
8.6
147.3
10.4
97.1
12.4
172.6
9.2
146.3
9.5
99
8.4
122.3
8.8
103
12.5
117.8
9.1
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93
(a)
Use the given data for the treatment group to determine if…
A deficiency of the trace element selenium in the diet can negatively impact growth, immunity, muscle and neuromuscular function, and fertility. The introduction of selenium supplements to dairy cows is justified when pastures have low selenium levels. Authors of a research paper supplied the following data on milk selenium concentration (mg/L) for a sample of cows given a selenium supplement (the treatment group) and a control sample given no supplement, both initially and after a 9-day period.
Initial Measurement
Treatment
Control
11.2
9.1
9.6
8.7
10.1
9.7
8.5
10.8
10.3
10.9
10.6
10.6
11.7
10.1
9.7
12.3
10.8
8.8
10.3
10.4
10.4
10.9
11.2
10.4
9.4
11.6
10.6
10.9
10.7
8.4
After 9 Days
Treatment
Control
138.3
9.3
104
8.7
96.4
8.7
89
10.1
88
9.6
103.8
8.6
147.3
10.2
97.1
12.2
172.6
9.3
146.3
9.5
99
8.2
122.3
8.9
103
12.5
117.8
9.1
121.5
93
(a)
Use the given data for the treatment group to determine if there…
A deficiency of the trace element selenium in the diet can negatively impact growth, immunity, muscle and neuromuscular function, and fertility. The introduction of selenium supplements to dairy cows is justified when pastures have low selenium levels. Authors of a research paper supplied the following data on milk selenium concentration (mg/L) for a sample of cows given a selenium supplement (the treatment group) and a control sample given no supplement, both initially and after a 9-day period.
Initial Measurement
Treatment
Control
11.3
9.1
9.7
8.7
10.1
9.7
8.5
10.8
10.4
10.9
10.7
10.6
11.8
10.1
9.8
12.3
10.6
8.8
10.4
10.4
10.2
10.9
11.3
10.4
9.2
11.6
10.7
10.9
10.8
8.2
After 9 Days
Treatment
Control
138.3
9.4
104
8.8
96.4
8.8
89
10.1
88
9.7
103.8
8.7
147.3
10.3
97.1
12.3
172.6
9.4
146.3
9.5
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8.3
122.3
8.9
103
12.5
117.8
9.1
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Chapter 12 Solutions
Fundamentals of Biostatistics
Ch. 12 - Nutrition Researchers compared protein intake...Ch. 12 - Nutrition Researchers compared protein intake...Ch. 12 - Prob. 3PCh. 12 - Prob. 4PCh. 12 - Prob. 5PCh. 12 - Pulmonary Disease Twenty-two young asthmatic...Ch. 12 - Pulmonary Disease Twenty-two young asthmatic...Ch. 12 - Prob. 8PCh. 12 - Prob. 32PCh. 12 - Gastroenterology In Table 12.39, we present data...
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