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 function (as defined by forced expiratory volume / forced vital capacity [FEV1/FVC]) at screening. *12.6 Test the hypothesis that there is an overall mean difference in bronchial reactivity among the three lung-function groups.

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 function (as defined by forced expiratory volume / forced vital capacity [FEV1/FVC]) at screening. *12.6 Test the hypothesis that there is an overall mean difference in bronchial reactivity among the three lung-function groups.

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Description: Twenty-two young asthmatic volunteers were studied toassess the short-term effects of sulfur dioxide (SO2) exposure under various conditions [12]. The baseline data inTable 12.30 were presented regarding bronchial reactivity to SO2 stratified by lung

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 31PPS

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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 function (as defined by forced
expiratory volume / forced vital capacity [FEV1/FVC]) at
screening.
*12.6 Test the hypothesis that there is an overall mean difference in bronchial reactivity among the three lung-function
groups.

TABLE 12.30 Relationship of bronchial reactivity
to So, (cm H,0/s) grouped by lung
function at screening among
22 asthmatic volunteers
Lung-function group
Group A
FEV, /FVC
Group B
Group C
FEV,/FVC
75-819%
FEV,/FVC
3 85%
20.8
7.5
9.2
4.1
7.5
2.0
30.0
11.9
2.5
24.7
4.5
6.1
13.8
3.1
7.5
8.0
4.7
28.1
10.3
10.0
5.1
2.2
Source: Based on the American Review of Respiratory Disease, 131(2),
221-225, 1985.

Expression, rule, or law that gives the relationship between an independent variable and dependent variable. Some important types of functions are injective function, surjective function, polynomial function, and inverse function.

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